US2703218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for installing aerial cables
Assignee: AT&T Inc
•
Filing: 1950-12-06
•
Granted: 1955-03-01
•
Expires: 1970-12-06
Abstract
No abstract record available.
Inventors
- 👤 Frederic V Haskell
- 👤 Stanford M Sutton
- 👤 Orville L Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:28
CPC Classifications
H; H02; H02G; H02G1/00; H02G1/02; H02G1/04
Claims Analysis
Total Claims: 0
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US2557185A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-28 | 1958-08-30 | 1959-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-28 | 1962-08-30 | 1963-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-28 | 1966-08-30 | 1967-03-01 | $7700.00 | Window Closed / Lapsed |