US3396660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hypodermic darts
Assignee: JACK YEOMAN SALES Ltd
•
Filing: 1966-03-16
•
Granted: 1968-08-13
•
Expires: 1986-03-16
Abstract
No abstract record available.
Inventors
- 👤 Frank L Bilson
- 👤 Ronald F Isted
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:18
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/36; F42B12/46; F42B12/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2348337A
Cited
US3006649A
Cited
US2995373A
Cited
US3137195A
Cited
US3207157A
Cited
US3180265A
Cited
US3209696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |