US2944378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-unit binder
Assignee: AT&T Inc
•
Filing: 1959-01-30
•
Granted: 1960-07-12
•
Expires: 1979-01-30
Abstract
No abstract record available.
Inventors
- 👤 Charles H Crosby
- 👤 Roger R Wahlberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:10
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/02; H01B13/0235; H01B13/0257
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1752497A
Cited
US1996451A
Cited
US2003353A
Cited
US2221555A
Cited
US2279115A
Cited
US2412196A
Cited
US2572052A
Cited
US2623345A
Cited
US2790299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |