US3373478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making refrigeration apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1965-11-17
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Granted: 1968-03-19
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Expires: 1985-11-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Harold F Simmonds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:12
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/06; F25D23/062; F25D23/064; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49758; Y10T29/49764; Y10T29/49826; Y10T29/49879; Y10T29/49904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |