US2839660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Immersion heater
Assignee: CARROLL H NEELY
•
Filing: 1956-08-13
•
Granted: 1958-06-17
•
Expires: 1976-08-13
Abstract
No abstract record available.
Inventors
- 👤 John G Davies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:25
CPC Classifications
A; A01; A01K; A01K63/00; A01K63/06; A01K63/065; H; H05; H05B; H05B3/00; H05B3/02; H05B3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735912A
Cited
US1452989A
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US1459665A
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US1837000A
Cited
US2090407A
Cited
US2201703A
Cited
US2769878A
Cited
US2740881A
Cited
US2766367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |