US3397847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elbow winding apparatus
Assignee: Individual
•
Filing: 1966-08-31
•
Granted: 1968-08-20
•
Expires: 1986-08-31
Abstract
No abstract record available.
Inventors
- 👤 Herbert V Thaden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:50
CPC Classifications
F; F16; F16L; F16L43/00; F16L43/008; B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/583; B29C53/588
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |