Patent US3534511A successfully refreshed from Google Patents.
US3534511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable cover for outdoor areas
Assignee: Individual
•
Filing: 1968-04-08
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Granted: 1970-10-20
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Expires: 1988-04-08
Abstract
No abstract record available.
Inventors
- 👤 Michael Cappella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:45
CPC Classifications
E; E04; E04B; E04B7/00; E04B7/16; E04B7/166; A; A01; A01G; A01G13/00; A01G13/30; A63; A63C; A63C19/00; A63C19/12; E04H; E04H15/00; E04H15/32; E04H15/64; E04H15/642; E04H15/644; E04H3/00; E04H3/10; E04H3/14; E04H4/00; E04H4/06; E04H4/10; Y; Y10; Y10S; Y10S135/00; Y10S135/912
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |