Patent US2843690A successfully refreshed from Google Patents.
US2843690A
Expired / Lapsed
US
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Safety edge for hangar door
Assignee: Miller Brothers Inc
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Filing: 1956-10-18
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Granted: 1958-07-15
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Expires: 1976-10-18
Abstract
No abstract record available.
Inventors
- 👤 Norman K Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:48
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/01; E05; E05F; E05F15/00; E05F15/40; E05F15/42; E05F15/44; E06B7/00; E06B7/28; E06B7/36; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/108
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) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |