US3444546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protection system
Assignee: General Alarm Corp
•
Filing: 1966-07-28
•
Granted: 1969-05-13
•
Expires: 1986-07-28
Abstract
No abstract record available.
Inventors
- 👤 Paul Maddison Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:14
CPC Classifications
E; E05; E05B; E05B45/00; E05B45/06; E05B45/08; E05B45/083; E05B45/086; E05C; E05C17/00; E05C17/02; E05C17/04; E05C17/36; E05C17/365; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5164; Y10T70/5199; Y10T70/5246; Y10T70/5296; Y10T70/5319; Y10T70/5327
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE367268C
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DE384743C
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FR958960A
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FR621453A
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US2170521A
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US2615083A
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US2634409A
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US2818475A
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US2921299A
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US3089202A
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US3286250A
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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) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |