Patent US2987300A successfully refreshed from Google Patents.
US2987300A
Expired / Lapsed
US
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Heat transfer assembly
Assignee: Individual
•
Filing: 1959-05-29
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Granted: 1961-06-06
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Expires: 1979-05-29
Abstract
No abstract record available.
Inventors
- 👤 Edward G S Greene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:08
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/80; B29B7/82; B29B7/826; B29C; B29C48/00; B29C48/25; B29C48/78; B29C48/80; B29C48/83; B29C48/832; B29C48/03; F; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/14; F28F1/22; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49087; Y10T29/4935; Y10T29/49364; Y10T29/49826; Y10T29/49863; Y10T29/49874; Y10T29/49908; Y10T29/49938; Y10T29/49947; Y10T29/49954
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1305170A
Cited
US1796123A
Cited
US1989955A
Cited
GB476171A
Cited
US2612351A
Cited
US2721729A
Cited
US2875312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |