US3015811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable fire alarm unit
Assignee: Harry Rubin & Sons Inc
•
Filing: 1959-03-09
•
Granted: 1962-01-02
•
Expires: 1979-03-09
Abstract
No abstract record available.
Inventors
- 👤 Leonard R Rubin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:52
CPC Classifications
G; G08; G08B; G08B17/00; G08B17/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2289128A
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US2446794A
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US2514807A
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US2786195A
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US2809368A
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US2832949A
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US2816280A
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US2819367A
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US2954548A
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US2911637A
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US2916915A
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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) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |