US3454447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bag-making machinery
Assignee: Millennium Petrochemicals Inc
•
Filing: 1964-08-05
•
Granted: 1969-07-08
•
Expires: 1984-08-05
Abstract
No abstract record available.
Inventors
- 👤 Herbert O Corbett
- 👤 John J Quackenbush
- 👤 James B Newman Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:56
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/006; B31B2155/00; B31B2155/003; B31B2160/00; B31B2160/10; Y; Y10; Y10T; Y10T156/00; Y10T156/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1653356A
Cited
US2749817A
Cited
US2729270A
Cited
US3043729A
Cited
GB908579A
Cited
US3050916A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |