US3391530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire rope
Assignee: CF&I Steel Corp
•
Filing: 1966-09-29
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Granted: 1968-07-09
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Expires: 1986-09-29
Abstract
No abstract record available.
Inventors
- 👤 Lex W Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:36
CPC Classifications
D; D07; D07B; D07B1/00; D07B1/06; D07B1/0673; D07B1/068; D07B2201/00; D07B2201/10; D07B2201/1012; D07B2201/1016; D07B2201/1028; D07B2201/1036
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1427471A
Cited
US1492977A
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DE695148C
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US2055037A
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DE975386C
Cited
US2587521A
Cited
US2779149A
Cited
US2900785A
Cited
US2971321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |