US3053185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expandable wads for shotgun shells
Assignee: Phillips Petroleum Co
•
Filing: 1959-12-03
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Granted: 1962-09-11
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Expires: 1979-12-03
Abstract
No abstract record available.
Inventors
- 👤 George G Oberfell
- 👤 Robert G Atkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:50
CPC Classifications
F; F42; F42B; F42B7/00; F42B7/02; F42B7/08
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) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |