US3482299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of plate fin tube modules
Assignee: HUDSON ENG CO
•
Filing: 1969-01-09
•
Granted: 1969-12-09
•
Expires: 1989-01-09
Abstract
No abstract record available.
Inventors
- 👤 Eugene M Davidson
- 👤 Addison Y Gunter
- 👤 Tom E Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:41
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/02; B21D53/08; B21D53/085; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377; Y10T29/49378; Y10T29/4938; Y10T29/51; Y10T29/5136; Y10T29/5137; Y10T29/5142; Y10T29/5188; Y10T29/53; Y10T29/53113; Y10T29/53122; Y10T29/53535
Claims Analysis
Total Claims: 0
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US3114963A
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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 |