Patent US5293222A successfully refreshed from Google Patents.
Patent US3415239A successfully refreshed from Google Patents.
US3415239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Launcher with adjustable-tension elastic bands
Assignee: Individual
•
Filing: 1965-08-05
•
Granted: 1968-12-10
•
Expires: 1985-08-05
Abstract
No abstract record available.
Inventors
- 👤 William E Swett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:20
CPC Classifications
F; F41; F41B; F41B3/00; F41B3/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1845920A
Cited
US1847593A
Cited
US2484589A
Cited
US2645217A
Cited
US2625926A
Cited
US2970839A
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 |