US2587762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire alarm apparatus
Assignee: PYROBAN DEVELOPMENTS Ltd
•
Filing: 1948-11-18
•
Granted: 1952-03-04
•
Expires: 1968-11-18
Abstract
No abstract record available.
Inventors
- 👤 Michael P Reece
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:12
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)
US245272A
Cited
US419710A
Cited
US2000074A
Cited
US2003358A
Cited
US1954832A
Cited
US2003443A
Cited
US2236891A
Cited
US2219262A
Cited
US2302593A
Cited
US2448575A
Cited
US2412471A
Cited
US2398892A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-04 | 1955-09-03 | 1956-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-04 | 1959-09-03 | 1960-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-04 | 1963-09-03 | 1964-03-04 | $7700.00 | Window Closed / Lapsed |