Patent US3527072A successfully refreshed from Google Patents.
US3527072A
Expired / Lapsed
US
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Combination key holder and ejector
Assignee: EJECTO KEY Inc
•
Filing: 1968-04-10
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Granted: 1970-09-08
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Expires: 1988-04-10
Abstract
No abstract record available.
Inventors
- 👤 James N Demetreon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:53
CPC Classifications
E; E05; E05B; E05B19/00; E05B63/00; E05B63/003; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/778; Y10T70/7791; Y10T70/791; Y10T70/80; Y10T70/8432; Y10T70/8676
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2505987A
Cited
US2699667A
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US3015869A
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US3154281A
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US3179969A
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US3292400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |