US3171015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dip stick heater
Assignee: Individual
•
Filing: 1962-05-09
•
Granted: 1965-02-23
•
Expires: 1982-05-09
Abstract
No abstract record available.
Inventors
- 👤 George H Grinde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:43
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/78; H05B3/80; F; F01; F01M; F01M5/00; F01M5/02; F01M5/021; F23; F23Q; F23Q7/00; F23Q7/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1148808A
Cited
US1823048A
Cited
US1959107A
Cited
US2058769A
Cited
US2551770A
Cited
US2508512A
Cited
US2844703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |