Patent US3149943A successfully refreshed from Google Patents.
US3149943A
Expired / Lapsed
US
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Chemical refrigerant package
Assignee: Individual
•
Filing: 1961-11-20
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Granted: 1964-09-22
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Expires: 1981-11-20
Abstract
No abstract record available.
Inventors
- 👤 Martin R Amador
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:11
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/10; A61F7/106; B; B29; B29C; B29C65/00; B29C65/56; B29C65/565; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; F; F25; F25D; F25D5/00; F25D5/02; A61F2007/0001; A61F7/02; A61F2007/0268; A61F2007/0276; B29C66/432; B29C66/4322; B29C66/4324; B29C66/433; F25D2400/00; F25D2400/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2756874A
Cited
US2882692A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |