US2488340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underply turnup and overply turndown device
Assignee: National Rubber Machinery Co
•
Filing: 1947-05-20
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Granted: 1949-11-15
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Expires: 1967-05-20
Abstract
No abstract record available.
Inventors
- 👤 Florian J Shook
- 👤 John W White
- 👤 Edwin E Mallory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:17
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/20; B29D30/32; B29D2030/3221; B29D2030/3257
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE18394E
Cited
US1723563A
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US2228774A
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US2381379A
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US2339551A
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US2394318A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-14 | 1953-05-16 | 1953-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-14 | 1957-05-16 | 1957-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-14 | 1961-05-16 | 1961-11-15 | $7700.00 | Window Closed / Lapsed |