US2960342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expandable splines
Assignee: Individual
•
Filing: 1958-03-28
•
Granted: 1960-11-15
•
Expires: 1978-03-28
Abstract
No abstract record available.
Inventors
- 👤 Foster W Raper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:02
CPC Classifications
B; B23; B23F; B23F21/00; B23F21/04; B23F21/06; B23B; B23B31/00; B23B31/02; B23B31/025; B23F23/00; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1037; Y10T279/1041; Y10T279/1045; Y10T279/28; Y10T403/00; Y10T403/70; Y10T403/7026; Y10T403/7028; Y10T82/00; Y10T82/26; Y10T82/266; Y10T82/268
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |