US3428337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe coupling
Assignee: OI Glass Inc
•
Filing: 1966-09-09
•
Granted: 1969-02-18
•
Expires: 1986-09-09
Abstract
No abstract record available.
Inventors
- 👤 William B Read
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:08
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/02; F16L19/0231; F16L49/00; F16L49/06; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/929; Y10S411/935
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US370168A
Cited
US1328401A
Cited
US1405342A
Cited
US1782484A
Cited
US2688500A
Cited
US2755110A
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US3233920A
Cited
DK55878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |