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Patent US2731685A successfully refreshed from Google Patents.
US2731685A
Expired / Lapsed
US
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Awning construction
Assignee: HASTINGS ALUMINUM PRODUCTS Inc
•
Filing: 1951-11-29
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Granted: 1956-01-24
•
Expires: 1971-11-29
Abstract
No abstract record available.
Inventors
- 👤 Silvers Albert
- 👤 James L Cotter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:12
CPC Classifications
E; E04; E04F; E04F10/00; E04F10/08
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |