US2889031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container filling and weighing machine
Assignee: Bemis Brothers Bag Co
•
Filing: 1957-04-24
•
Granted: 1959-06-02
•
Expires: 1977-04-24
Abstract
No abstract record available.
Inventors
- 👤 Frank L Hopkins
- 👤 Richard H Ayres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:23
CPC Classifications
B; B65; B65B; B65B1/00; B65B1/30; B65B1/32; B65B1/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1402934A
Cited
US1855767A
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US2058729A
Cited
US2058775A
Cited
US2151107A
Cited
US2364902A
Cited
US2595035A
Cited
US2766001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |