US2815531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Open side multiple roll calender
Assignee: MCKIERNAN TERRY CORP
•
Filing: 1955-11-30
•
Granted: 1957-12-10
•
Expires: 1975-11-30
Abstract
No abstract record available.
Inventors
- 👤 Bruce D Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:28
CPC Classifications
D; D06; D06C; D06C15/00; Y; Y10; Y10S; Y10S425/00; Y10S425/235
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US174047A
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US748593A
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DE291C
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US727229A
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US2300522A
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US2571239A
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US2495990A
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DE843687C
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US2686413A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |