US2961876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic control for surface burners
Assignee: Robertshaw Controls Co
•
Filing: 1958-10-08
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Granted: 1960-11-29
•
Expires: 1978-10-08
Abstract
No abstract record available.
Inventors
- 👤 Wantz Clarence
- 👤 Henry J Durst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:51
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0208; F; F24; F24C; F24C3/00; F24C3/12; F24C3/126
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |