US2955185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constant temperature apparatus
Assignee: Individual
•
Filing: 1957-12-16
•
Granted: 1960-10-04
•
Expires: 1977-12-16
Abstract
No abstract record available.
Inventors
- 👤 Duncan B Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:32
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0213
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1840114A
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US2157703A
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US2106756A
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US2102783A
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US2462850A
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US2438345A
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US2510039A
Cited
DE866391C
Cited
US2747069A
Cited
US2791706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |