US2696877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner igniter and safety control
Assignee: Geo D Roper Corp
•
Filing: 1950-11-24
•
Granted: 1954-12-14
•
Expires: 1970-11-24
Abstract
No abstract record available.
Inventors
- 👤 Peter I Hollman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:53
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/06; F23N5/067; F23N5/027; F23N2225/00; F23N2225/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2048065A
Cited
US2099171A
Cited
US2123829A
Cited
US2150450A
Cited
US2198896A
Cited
US2275657A
Cited
US2305848A
Cited
US2290048A
Cited
US2258924A
Cited
US2334603A
Cited
US2257024A
Cited
US2296340A
Cited
US2382216A
Cited
US2313890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |