Patent US943968A successfully refreshed from Google Patents.
US943968A
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US
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Method of making bolsters and similar articles.
Assignee: Pressed Steel Car Co
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Filing: 1908-02-15
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Granted: 1909-12-21
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Expires: 1928-02-15
Abstract
No abstract record available.
Inventors
- 👤 Frank Ditchfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:49
CPC Classifications
B; B23; B23P; B23P11/00; B23P11/02; B21; B21D; B21D11/00; B21D11/10; B21D39/00; B21D39/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49861
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) | 1912-12-20 | 1913-06-21 | 1913-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-12-20 | 1917-06-21 | 1917-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-12-20 | 1921-06-21 | 1921-12-21 | $7700.00 | Window Closed / Lapsed |