US2952141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration apparatus
Assignee: King Seeley Corp
•
Filing: 1956-02-27
•
Granted: 1960-09-13
•
Expires: 1976-02-27
Abstract
No abstract record available.
Inventors
- 👤 Nelson Marcus
- 👤 Benjamin K Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:54
CPC Classifications
F; F25; F25C; F25C1/00; F25C1/12; F25C1/14; F25C1/145; F25C1/147; F25C5/00; F25C5/14; F25C5/142; F25B; F25B2400/00; F25B2400/05; F25B2400/052
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2704657A
Cited
US1046842A
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US1562229A
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US1954518A
Cited
US1965553A
Cited
US2251736A
Cited
US2709344A
Cited
US2744391A
Cited
US2860490A
Cited
US2753694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |