Tent – canopy – umbrella – or cane – Umbrella – Self-opening and closing
Patent
1977-03-28
1978-02-07
Schroeder, Werner H.
Tent, canopy, umbrella, or cane
Umbrella
Self-opening and closing
135DIG7, A45F 100
Patent
active
040721582
ABSTRACT:
Novel portable shelter apparatus including a side portion which can be detached along three of its four sides and raised to a substantially horizontal position, an extendable floor portion that can be unrolled from its normal storage position to an extended floor position underneath the raised side portion, and side wall netting operable to interconnect the raised side and extended floor portions to provide, within an insect-proof environment, a substantially increased floor space and increased user visibility.
REFERENCES:
patent: 1533820 (1925-04-01), Whitehead
patent: 1927387 (1933-09-01), Bixenstein
patent: 2345377 (1944-03-01), Bowen
patent: 3004592 (1961-10-01), Norton
patent: 3800814 (1974-04-01), Hibbert
patent: 3943952 (1976-03-01), Marquart et al.
Harger Virginia R.
O'Brien Thomas J.
Parsons David A.
Berman Conrad L.
O'Brien Thomas J.
Schroeder Werner H.
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