US3486775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fitting
Assignee: Cajon Co
•
Filing: 1968-07-31
•
Granted: 1969-12-30
•
Expires: 1988-07-31
Abstract
No abstract record available.
Inventors
- 👤 Francis J Callahan Jr
- 👤 Erling G Wennerstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:06
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/06; F16L19/061
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US695071A
Cited
US845085A
Cited
US868377A
Cited
GB356507A
Cited
US2017717A
Cited
US2044768A
Cited
US2422158A
Cited
US2958548A
Cited
FR1192423A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |