Patent US3441986A successfully refreshed from Google Patents.
US3441986A
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Assignee: Robin Products Co
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Filing: 1967-08-31
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Granted: 1969-05-06
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Expires: 1987-08-31
Abstract
No abstract record available.
Inventors
- 👤 John S Pritchard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:50
CPC Classifications
F; F16; F16L; F16L3/00; F16L3/22; F16L3/237; F16B; F16B21/00; F16B21/06; F16B21/08; F16B21/086; F16B21/088; F16L3/08; F16L3/12; F16L3/13; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44017; Y10T24/44026; Y10T24/44641
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-05 | 1972-11-04 | 1973-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-05 | 1976-11-04 | 1977-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-05 | 1980-11-04 | 1981-05-06 | $7700.00 | Window Closed / Lapsed |