US2581472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple conductor insulated wire
Assignee: Whitney Blake Co
•
Filing: 1948-03-30
•
Granted: 1952-01-08
•
Expires: 1968-03-30
Abstract
No abstract record available.
Inventors
- 👤 Raymond H Dudley
- 👤 Carl A Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:04
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/38; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1064
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1940917A
Cited
US1977787A
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US2089774A
Cited
US2204782A
Cited
GB483714A
Cited
FR834353A
Cited
US2235523A
Cited
US2455773A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |