Patent US3015811A successfully refreshed from Google Patents.
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 09:59
CPC Classifications
G; G08; G08B; G08B17/00; G08B17/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1562574A
Cited
US2289128A
Cited
US2446794A
Cited
US2514807A
Cited
US2786195A
Cited
US2809368A
Cited
US2832949A
Cited
US2816280A
Cited
US2819367A
Cited
US2954548A
Cited
US2911637A
Cited
US2916915A
Cited
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 |