US2964827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sping beaming
Assignee: EIDP Inc
•
Filing: 1956-06-04
•
Granted: 1960-12-20
•
Expires: 1976-06-04
Abstract
No abstract record available.
Inventors
- 👤 Gustaf T Lindstrom
- 👤 Daniel P Macmurray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:35
CPC Classifications
D; D02; D02H; D02H3/00; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2066
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1015836A
Cited
US1651096A
Cited
US1809660A
Cited
FR663212A
Cited
US2214384A
Cited
US2385691A
Cited
US2650038A
Cited
US2786257A
Cited
US2769495A
Cited
US2772054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |