Patent US2713897A successfully refreshed from Google Patents.
US2713897A
Expired / Lapsed
US
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Handles for flexible doors
Assignee: HOUGH SHADE Corp
•
Filing: 1953-03-27
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Granted: 1955-07-26
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Expires: 1973-03-27
Abstract
No abstract record available.
Inventors
- 👤 Teague Walter Dorwin
- 👤 Robert H Ensign
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:08
CPC Classifications
E; E05; E05B; E05B1/00; E05B1/0015; Y; Y10; Y10T; Y10T292/00; Y10T292/03; Y10T292/08; Y10T292/0801; Y10T292/0814; Y10T292/0876
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1077643A
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US1761582A
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US1829617A
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US1846202A
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US2430974A
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US2616122A
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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) | 1958-07-25 | 1959-01-24 | 1959-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-25 | 1963-01-24 | 1963-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-25 | 1967-01-24 | 1967-07-26 | $7700.00 | Window Closed / Lapsed |