US2221633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic apparatus
Assignee: Motors Liquidation Co
•
Filing: 1938-05-28
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Granted: 1940-11-12
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Expires: 1958-05-28
Abstract
No abstract record available.
Inventors
- 👤 Don E Dasher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:32
CPC Classifications
F; F25; F25B; F25B41/00; F25B41/30; F25B41/31; F25B41/33; F25B2341/00; F25B2341/06; F25B2341/068; F25B2341/0682; Y; Y10; Y10S; Y10S236/00; Y10S236/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-11-12 | 1944-05-13 | 1944-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-11-12 | 1948-05-13 | 1948-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-11-12 | 1952-05-13 | 1952-11-12 | $7700.00 | Window Closed / Lapsed |