US3516688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple-purpose demountable pipe-coupling system
Assignee: Individual
•
Filing: 1967-04-20
•
Granted: 1970-06-23
•
Expires: 1987-04-20
Abstract
No abstract record available.
Inventors
- 👤 Jean Gachot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:52
CPC Classifications
F; F16; F16L; F16L29/00; B; B01; B01D; B01D35/00; B01D35/02; F16K; F16K3/00; F16K3/30; F16K3/312; F16K37/00; F16L23/00; F16L23/006; F16L41/00; F16L41/02; F16L41/021; F16L55/00; F16L55/02; F16L55/027; F16L55/02709; F16L55/10; F16L55/24; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/791; Y10T137/8158; Y10T137/8359
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US948221A
Cited
US1083350A
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US1493269A
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US2462493A
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US2635643A
Cited
US2740423A
Cited
US2786696A
Cited
DE1042317B
Cited
US2994342A
Cited
FR1219291A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |