US2968976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heading die
Assignee: Schaefer Equipment Inc
•
Filing: 1958-06-11
•
Granted: 1961-01-24
•
Expires: 1978-06-11
Abstract
No abstract record available.
Inventors
- 👤 Roland E Cale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:22
CPC Classifications
B; B21; B21J; B21J9/00; B21J9/02; B21J9/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US291098A
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US415402A
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US415403A
Cited
US1402919A
Cited
US1458294A
Cited
US2138867A
Cited
US2327117A
Cited
US2490954A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-24 | 1964-07-25 | 1965-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-24 | 1968-07-25 | 1969-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-24 | 1972-07-25 | 1973-01-24 | $7700.00 | Window Closed / Lapsed |