US2747648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for uniting plastic washers with annular plastic pads
Assignee: AT&T Inc
•
Filing: 1953-09-28
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Granted: 1956-05-29
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Expires: 1973-09-28
Abstract
No abstract record available.
Inventors
- 👤 Darwin H Bingham
- 👤 Leonard O Larsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:17
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/48; B29C65/4895; B29C65/52; B29C65/78; B29C65/7858; B29C65/7879; B29C65/7882; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/45; B29C66/452; B29C66/47; B29C66/472; B29C66/80; B29C66/81; B29C66/816; B29C66/8161; B29C66/82; B29C66/822; B29C66/8226; B29C66/83; B29C66/832; B29C66/8322; B29L; B29L2031/00; B29L2031/709; B29L2031/7096; B29L2031/7098; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1744; Y10T156/1768; Y10T156/1771; Y10T156/1798
Claims Analysis
Total Claims: 0
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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) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |