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Patent US3531827A successfully refreshed from Google Patents.
US3531827A
Expired / Lapsed
US
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Thickness control system for calendering
Assignee: Harte and Co Inc
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Filing: 1966-05-13
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Granted: 1970-10-06
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Expires: 1986-05-13
Abstract
No abstract record available.
Inventors
- 👤 Anthony J Dragonette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:55
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/22; B29C43/24; B29C43/245; B21; B21B; B21B37/00; B21B37/16; B21B37/165; Y; Y10; Y10S; Y10S425/00; Y10S425/235
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) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |