Patent US3449003A successfully refreshed from Google Patents.
US3449003A
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Snap coupling
Assignee: Marco Products Co
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Filing: 1965-11-08
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Granted: 1969-06-10
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Expires: 1985-11-08
Abstract
No abstract record available.
Inventors
- 👤 Robert G Hunt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:24
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/30; E03F; E03F9/00; E03F9/002; F; F16; F16B; F16B7/00; F16B7/04; F16B7/0406; F16B7/0413; F16B7/042; F16D; F16D1/00; F16D1/10; F16D1/108; F16D1/112; Y; Y10; Y10T; Y10T403/00; Y10T403/59; Y10T403/598
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US389335A
Cited
US1896645A
Cited
US2273102A
Cited
US2538919A
Cited
US2539229A
Cited
US3070129A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |