US2986411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastisol pipe joint
Assignee: ROBINSON CLAY PRODUCTS Co
•
Filing: 1957-10-31
•
Granted: 1961-05-30
•
Expires: 1977-10-31
Abstract
No abstract record available.
Inventors
- 👤 Richard H Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:41
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/02; F16L23/024; F16L21/00; F16L21/02; F16L21/05; F16L25/00; F16L25/0027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL47628C
Cited
US2284741A
Cited
US2327128A
Cited
US2401554A
Cited
GB591611A
Cited
GB606936A
Cited
US2739829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |