Patent US2633277A successfully refreshed from Google Patents.
Patent US3500670A successfully refreshed from Google Patents.
US3500670A
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Lock mechanism and alarm
Assignee: General Alarm Corp
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Filing: 1968-03-08
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Granted: 1970-03-17
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Expires: 1988-03-08
Abstract
No abstract record available.
Inventors
- 👤 Paul Maddison Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:35
CPC Classifications
E; E05; E05B; E05B45/00; E05B45/06; E05B27/00; E05B27/0003; E05B27/0007; E05B27/001; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7667; Y10T70/7684; Y10T70/7751; Y10T70/7915; Y10T70/7921; Y10T70/7932; Y10T70/7949
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) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |