Patent US2579391A successfully refreshed from Google Patents.
US2579391A
Expired / Lapsed
US
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In-place resurfacing of ponderous cylinders
Assignee: Paper Patents Co
•
Filing: 1946-06-13
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Granted: 1951-12-18
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Expires: 1966-06-13
Abstract
No abstract record available.
Inventors
- 👤 Rudolf G Minarik
- 👤 Eric N Isakson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:25
CPC Classifications
B; B24; B24B; B24B21/00; B24B21/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US275954A
Cited
US348177A
Cited
US598671A
Cited
US697094A
Cited
GB190322302A
Cited
US1464046A
Cited
US1689829A
Cited
US2220268A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-17 | 1955-06-18 | 1955-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-17 | 1959-06-18 | 1959-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-17 | 1963-06-18 | 1963-12-18 | $7700.00 | Window Closed / Lapsed |