US3015016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical heating units and the like
Assignee: Individual
•
Filing: 1959-08-13
•
Granted: 1961-12-26
•
Expires: 1979-08-13
Abstract
No abstract record available.
Inventors
- 👤 James D Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:09
CPC Classifications
F; F24; F24D; F24D13/00; F24D13/02; F24D13/022; Y; Y02; Y02B; Y02B30/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA465842A
Cited
US1994759A
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US2052644A
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US2548468A
Cited
US2685633A
Cited
GB701304A
Cited
US2619580A
Cited
FR1050664A
Cited
US2771537A
Cited
US2866066A
Cited
US2938991A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-25 | 1965-06-26 | 1965-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-25 | 1969-06-26 | 1969-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-25 | 1973-06-26 | 1973-12-26 | $7700.00 | Window Closed / Lapsed |