US3415543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling frame
Assignee: Individual
•
Filing: 1965-07-08
•
Granted: 1968-12-10
•
Expires: 1985-07-08
Abstract
No abstract record available.
Inventors
- 👤 Henry M Keating
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:16
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/002; F16L23/00; F16L23/12; F16L23/14; F24; F24F; F24F13/00; F24F13/02; F24F13/0209; Y; Y10; Y10S; Y10S55/00; Y10S55/26; Y10S55/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1935690A
Cited
US2126499A
Cited
US2211384A
Cited
US2396257A
Cited
FR992163A
Cited
US2498753A
Cited
US2531349A
Cited
US2710079A
Cited
GB775841A
Cited
US2890899A
Cited
FR1363255A
Cited
US3246918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |