US3540760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick connect coupling
Assignee: Weatherhead Co
•
Filing: 1969-03-24
•
Granted: 1970-11-17
•
Expires: 1989-03-24
Abstract
No abstract record available.
Inventors
- 👤 Paul J Miller
- 👤 Karl K Chen
- 👤 James R Jeromson Jr
- 👤 Ellis M Wellman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:36
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/084; F16L37/088; Y; Y10; Y10S; Y10S285/00; Y10S285/924; Y10S285/925
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |