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US3476154A
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Assignee: ANDREWS IND Inc
•
Filing: 1968-12-18
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Granted: 1969-11-04
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Expires: 1988-12-18
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Ludeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:58
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16L55/115
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1346879A
Cited
US1734372A
Cited
US2069216A
Cited
US2281145A
Cited
US2729231A
Cited
US3118561A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |