Patent US4595871A successfully refreshed from Google Patents.
Patent US3482298A successfully refreshed from Google Patents.
US3482298A
Expired / Lapsed
US
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Method of manufacture of wire fin and tube heat exchangers
Assignee: Motors Liquidation Co
•
Filing: 1965-10-22
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Granted: 1969-12-09
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Byron L Brucken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:50
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/22; B21C37/26; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377; Y10T29/49378; Y10T29/51; Y10T29/5188; Y10T29/53; Y10T29/53113
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US877252A
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US2308319A
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US2494286A
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US2500501A
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US2948796A
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US3114963A
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US3217392A
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US3353250A
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US3265276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |