US3419291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe coupling
Assignee: Corning Glass Works
•
Filing: 1967-01-30
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Granted: 1968-12-31
•
Expires: 1987-01-30
Abstract
No abstract record available.
Inventors
- 👤 William H Tomb
- 👤 Peter E Wesel
- 👤 Jr Anthony R Zine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:21
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/04; F16L23/08; F16L49/00; F16L49/02; F16L49/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1937865A
Cited
US2207813A
Cited
US3232647A
Cited
US3186743A
Cited
US3233907A
Cited
US3376055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |