Patent US2881797A successfully refreshed from Google Patents.
US2881797A
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Pump and fluid circulating system for humid treatment of masses of textile fibers
Assignee: Individual
•
Filing: 1955-10-20
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Granted: 1959-04-14
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Expires: 1975-10-20
Abstract
No abstract record available.
Inventors
- 👤 Clermont Edgar Jules
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:18
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/44; F04D29/46; F04D29/48; F04D29/486; D; D06; D06B; D06B5/00; D06B5/12; F04D1/00; F04D1/02; F04D1/025; F04D29/18; F04D29/22; F04D29/2238; F04D29/2261; F04D29/2283; B; B29; B29L; B29L2030/00; D06B2700/00; D06B2700/18; Y; Y10; Y10S; Y10S415/00; Y10S415/911; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85954
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE35581C
Cited
US2004419A
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US2225070A
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US2125041A
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US2189767A
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US2400240A
Cited
US2437987A
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US2577727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |