Patent US1671619A successfully refreshed from Google Patents.
US1671619A
Expired / Lapsed
US
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Punching apparatus for radiators
Assignee: Individual
•
Filing: 1925-07-09
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Granted: 1928-05-29
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Expires: 1945-07-09
Abstract
No abstract record available.
Inventors
- 👤 John W Vance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:51
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/24; B21D28/32; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2096; Y10T83/2135; Y10T83/2144; Y10T83/869; Y10T83/8821; Y10T83/8841
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) | 1931-05-29 | 1931-11-28 | 1932-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-05-29 | 1935-11-28 | 1936-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-05-29 | 1939-11-28 | 1940-05-29 | $7700.00 | Window Closed / Lapsed |