Patent US3456449A successfully refreshed from Google Patents.
US3456449A
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Cable-laying apparatus and method of laying cable
Assignee: A H ROMINGER AND SONS
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Filing: 1966-04-18
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Granted: 1969-07-22
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Expires: 1986-04-18
Abstract
No abstract record available.
Inventors
- 👤 Frank J Heil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:04
CPC Classifications
H; H02; H02G; H02G1/00; H02G1/06; H01; H01B; H01B13/00; H01B13/22; H01B13/26; H01B13/2613; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49828; Y10T29/53; Y10T29/53126; Y10T29/5313; Y10T29/532; Y10T29/53243
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1298644A
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US1829162A
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US2792852A
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US2808492A
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US3053037A
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US3132416A
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US3154112A
Cited
US3137985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |