US2964034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically sealed heaters
Assignee: Temco Inc
•
Filing: 1956-12-31
•
Granted: 1960-12-13
•
Expires: 1976-12-31
Abstract
No abstract record available.
Inventors
- 👤 Louis E Nordholt
- 👤 Richard M Scherer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:30
CPC Classifications
F; F24; F24C; F24C3/00; F24C3/002; F24C3/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2160883A
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US2192920A
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US2243916A
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US2755794A
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US2764972A
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GB736326A
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US2692186A
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US2818059A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |