US3461658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile strand treatment
Assignee: Techniservice Corp
•
Filing: 1968-06-12
•
Granted: 1969-08-19
•
Expires: 1988-06-12
Abstract
No abstract record available.
Inventors
- 👤 Frederick J E Hampel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:26
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/02; D02G1/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2881504A
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US2963848A
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US3010271A
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US3035396A
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US3148520A
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US3050819A
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US3178795A
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US3261116A
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US3192697A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-18 | 1973-02-17 | 1973-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-18 | 1977-02-17 | 1977-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-18 | 1981-02-17 | 1981-08-19 | $7700.00 | Window Closed / Lapsed |