US3051985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-roll mills
Assignee: BX Plastics Ltd
•
Filing: 1960-08-04
•
Granted: 1962-09-04
•
Expires: 1980-08-04
Abstract
No abstract record available.
Inventors
- 👤 Mills Derek John
- 👤 Tice Elsie Alice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:30
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/58; B29B7/584; B29B7/588
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1680171A
Cited
US1923027A
Cited
US2593282A
Cited
US2629129A
Cited
US2663901A
Cited
US2730755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |