US2766516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of hollow spring pins
Assignee: Elastic Stop Nut Corp
•
Filing: 1951-11-19
•
Granted: 1956-10-16
•
Expires: 1971-11-19
Abstract
No abstract record available.
Inventors
- 👤 Samuel W Chantler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:40
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/02; B21D51/10; B21D53/00; Y; Y10; Y10T; Y10T225/00; Y10T225/10; Y10T225/14; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T29/4979; Y10T29/51; Y10T29/5116
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE258454C
Cited
US1721431A
Cited
US2024485A
Cited
DE666038C
Cited
US2248720A
Cited
US2222842A
Cited
FR890122A
Cited
US2444463A
Cited
US2621622A
Cited
US2582062A
Cited
US2582063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |