US2608892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for supporting cores in toroidal coil winding machines
Assignee: AT&T Inc
•
Filing: 1949-02-10
•
Granted: 1952-09-02
•
Expires: 1969-02-10
Abstract
No abstract record available.
Inventors
- 👤 Malcolm O Bennert
- 👤 Norman C Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:28
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F41/06; H01F41/08; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/1967
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US440435A
Cited
US663970A
Cited
US807064A
Cited
US909469A
Cited
US925603A
Cited
US1074594A
Cited
US1213351A
Cited
US2069582A
Cited
US2313361A
Cited
US2341650A
Cited
US2396823A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |