US3010449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heater combination
Assignee: Individual
•
Filing: 1955-07-15
•
Granted: 1961-11-28
•
Expires: 1975-07-15
Abstract
No abstract record available.
Inventors
- 👤 Paul D Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:04
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/02; F24H3/06; F24H3/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US605329A
Cited
US1755727A
Cited
US2017621A
Cited
US2175866A
Cited
US2408691A
Cited
US2379018A
Cited
US2484385A
Cited
US2470420A
Cited
GB616006A
Cited
US2501688A
Cited
US2775238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-27 | 1965-05-29 | 1965-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-27 | 1969-05-29 | 1969-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-27 | 1973-05-29 | 1973-11-28 | $7700.00 | Window Closed / Lapsed |