US3486752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Target toy device
Assignee: 3M Co
•
Filing: 1967-08-28
•
Granted: 1969-12-30
•
Expires: 1987-08-28
Abstract
No abstract record available.
Inventors
- 👤 Ronald L Colvin
- 👤 Wendell J Manske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:14
CPC Classifications
F; F41; F41J; F41J1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR351053A
Cited
US2550469A
Cited
US2730457A
Cited
US2857698A
Cited
US3016308A
Cited
US3128627A
Cited
US3330561A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |