US1367238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming valve-seats
Assignee: Ohio Body & Blower Co
•
Filing: 1917-12-07
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Granted: 1921-02-01
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Expires: 1937-12-07
Abstract
No abstract record available.
Inventors
- 👤 William E Coakley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:46
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/20; B21K1/24; B21K23/00; B25; B25D; B25D1/00; B25D1/16
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) | 1924-02-01 | 1924-08-02 | 1925-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-02-01 | 1928-08-02 | 1929-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-02-01 | 1932-08-02 | 1933-02-01 | $7700.00 | Window Closed / Lapsed |