US3438657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swaged ferrule type flexible coupling
Assignee: Purolator Courier Corp
•
Filing: 1967-01-25
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Granted: 1969-04-15
•
Expires: 1987-01-25
Abstract
No abstract record available.
Inventors
- 👤 Jorge Torres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:41
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/10; F16L27/113; F16L27/1136; F16L27/12; F16L27/127; F16L27/1274; Y; Y10; Y10S; Y10S277/00; Y10S277/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR883640A
Cited
GB565387A
Cited
US2641012A
Cited
US2786696A
Cited
US2826437A
Cited
US2918313A
Cited
US3198559A
Cited
US3186739A
Cited
GB1046601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |