US2537129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Beloit Iron Works Inc
•
Filing: 1945-10-05
•
Granted: 1951-01-09
•
Expires: 1965-10-05
Abstract
No abstract record available.
Inventors
- 👤 John E Goodwillie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:25
CPC Classifications
D; D21; D21F; D21F2/00; D21F5/00; D21F5/02; Y; Y10; Y10S; Y10S162/00; Y10S162/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US768834A
Cited
GB191108636A
Cited
US1701226A
Cited
US1858546A
Cited
US1991346A
Cited
US2091805A
Cited
US2186171A
Cited
US2204426A
Cited
GB463188A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |