US3451697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe joint
Assignee: Individual
•
Filing: 1966-09-28
•
Granted: 1969-06-24
•
Expires: 1986-09-28
Abstract
No abstract record available.
Inventors
- 👤 Karl Bula
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:25
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/06; F16L19/075; F16L19/02; F16L19/0212; F16L19/0225; F16L27/00; F16L27/10; F16L27/113; F16L27/1136
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1533886A
Cited
US1703696A
Cited
FR685502A
Cited
DE721754C
Cited
US2305668A
Cited
US2531922A
Cited
US2567113A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |