US2539367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastening device
Assignee: VARSITY Manufacturing Co
•
Filing: 1949-11-14
•
Granted: 1951-01-23
•
Expires: 1969-11-14
Abstract
No abstract record available.
Inventors
- 👤 Rosalind G Greenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:10
CPC Classifications
A; A44; A44B; A44B99/00; A41; A41F; A41F1/00; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44641; Y10T24/44769; Y10T24/44872; Y10T24/44923
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US472343A
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US667941A
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US705622A
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US1007530A
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US1150343A
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US1842702A
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US1865995A
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US2098821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-22 | 1954-07-24 | 1955-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-22 | 1958-07-24 | 1959-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-22 | 1962-07-24 | 1963-01-23 | $7700.00 | Window Closed / Lapsed |