US2561745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for locking tubular members on shafts
Assignee: AT&T Inc
•
Filing: 1947-06-06
•
Granted: 1951-07-24
•
Expires: 1967-06-06
Abstract
No abstract record available.
Inventors
- 👤 Brooke W Lerch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:22
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/24; B65H75/242; B65H75/246; B65H75/247; F; F16; F16D; F16D15/00; B65H2701/00; B65H2701/30; B65H2701/31; Y; Y10; Y10T; 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) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |