US3534984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling
Assignee: Individual
•
Filing: 1968-04-01
•
Granted: 1970-10-20
•
Expires: 1988-04-01
Abstract
No abstract record available.
Inventors
- 👤 Robert A Shuey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:32
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/003; F16L37/00; F16L37/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1158415A
Cited
US1494523A
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US1873855A
Cited
US2848255A
Cited
US3032125A
Cited
US3331621A
Cited
US3171674A
Cited
US3171188A
Cited
US3240511A
Cited
US3345087A
Cited
US3345084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |