US2957637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web control method and apparatus
Assignee: Research Corp
•
Filing: 1954-06-24
•
Granted: 1960-10-25
•
Expires: 1974-06-24
Abstract
No abstract record available.
Inventors
- 👤 James C Hosken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:52
CPC Classifications
B; B41; B41F; B41F13/00; B41F13/02; B41F33/00; B41F33/18; Y; Y10; Y10S; Y10S428/00; Y10S428/906; Y10T; Y10T24/00; Y10T24/20; Y10T24/207; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24298; Y10T428/24306
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1540831A
Cited
US1895425A
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US2167810A
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US2386345A
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US2561064A
Cited
US2613042A
Cited
US2752985A
Cited
US2732318A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |