US2668675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Winding machine
Assignee: National Gypsum Co
•
Filing: 1948-08-06
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Granted: 1954-02-09
•
Expires: 1968-08-06
Abstract
No abstract record available.
Inventors
- 👤 Henry J Wolfe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:37
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/22; B65H19/29; B65H19/2207; B65H19/2223; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/414; B65H2301/4144; B65H2301/41441; B65H2301/41442; B65H2301/414421; B65H2301/417; B65H2301/418; B65H2301/4181; B65H2301/41814; B65H2408/00; B65H2408/20; B65H2408/23; B65H2408/231; B65H2408/2315; B65H2408/23157
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1194248A
Cited
US1040188A
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US1776263A
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US1966525A
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US1958068A
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US1976641A
Cited
US2403147A
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US2332371A
Cited
US2361264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-08 | 1957-08-10 | 1958-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-08 | 1961-08-10 | 1962-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-08 | 1965-08-10 | 1966-02-09 | $7700.00 | Window Closed / Lapsed |