US2129496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fingernail protector for switchboard operators
Assignee: Individual
•
Filing: 1937-09-04
•
Granted: 1938-09-06
•
Expires: 1957-09-04
Abstract
No abstract record available.
Inventors
- 👤 Hollingsworth Alice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:15
CPC Classifications
B; B42; B42D; B42D9/00; B42D9/04; A; A41; A41D; A41D13/00; A41D13/05; A41D13/08; A41D13/081; A41D13/087; H; H04; H04M; H04M1/00; H04M1/02; H04M1/23
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) | 1941-09-05 | 1942-03-07 | 1942-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-09-05 | 1946-03-07 | 1946-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-09-05 | 1950-03-07 | 1950-09-06 | $7700.00 | Window Closed / Lapsed |