Patent US2935771A successfully refreshed from Google Patents.
US2935771A
Expired / Lapsed
US
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Sealing arrangement
Assignee: Maynard Sash & Door Co
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Filing: 1958-03-12
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Granted: 1960-05-10
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Expires: 1978-03-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Russell S Hatcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:35
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/16; E06B7/22; E06B7/23; E06B7/2305; E06B7/2307; E06B7/2309
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2263806A
Cited
US2622286A
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US2801450A
Cited
US2710432A
Cited
US2843233A
Cited
US2739357A
Cited
US2779070A
Cited
US2837151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |