US1322366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for making fins for radiator-tubes and automatically applying them to said tubes.
Assignee: Individual
•
Filing: 1919-03-24
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Granted: 1919-11-18
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Expires: 1939-03-24
Abstract
No abstract record available.
Inventors
- 👤 Charles F Spery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:42
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/02; B21D53/08; B21D53/085; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5136; Y10T29/5137; Y10T29/5142; Y10T29/5188; Y10T29/53; Y10T29/53113
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1922-11-17 | 1923-05-19 | 1923-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-11-17 | 1927-05-19 | 1927-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-11-17 | 1931-05-19 | 1931-11-18 | $7700.00 | Window Closed / Lapsed |