Patent US3093331A successfully refreshed from Google Patents.
US3093331A
Expired / Lapsed
US
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Mounting head for pirns
Assignee: Acrometal Products Inc
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Filing: 1961-01-24
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Granted: 1963-06-11
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Expires: 1981-01-24
Abstract
No abstract record available.
Inventors
- 👤 Robert L Carroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:17
CPC Classifications
B; B65; B65H; B65H49/00; B65H49/02; B65H49/04; B65H49/06; B65H2701/00; B65H2701/30; B65H2701/31
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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |