US2572901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Joslyn Manufacturing and Supply Co
•
Filing: 1948-09-25
•
Granted: 1951-10-30
•
Expires: 1968-09-25
Abstract
No abstract record available.
Inventors
- 👤 Edward H Yonkers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:42
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/10; H01H9/102; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1944762A
Cited
US1952635A
Cited
US2256360A
Cited
US2281795A
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US2333345A
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US2315311A
Cited
US2485076A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-29 | 1955-04-30 | 1955-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-29 | 1959-04-30 | 1959-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-29 | 1963-04-30 | 1963-10-30 | $7700.00 | Window Closed / Lapsed |