US2540833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strand guide for unit type stranders
Assignee: AT&T Inc
•
Filing: 1949-09-08
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Granted: 1951-02-06
•
Expires: 1969-09-08
Abstract
No abstract record available.
Inventors
- 👤 Pitt Samuel
- 👤 Gordon C Spillman
- 👤 Lorentz G Wade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:25
CPC Classifications
D; D07; D07B; D07B7/00; D07B7/02
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) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |