US2881897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Channeling device for an article transferring apparatus
Assignee: Pfizer Inc
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Filing: 1956-10-11
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Granted: 1959-04-14
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Expires: 1976-10-11
Abstract
No abstract record available.
Inventors
- 👤 Hermann G Thulke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:33
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/52; B65G47/68; B65G47/682; B65G47/684; B65G47/34; B65G47/46; B65G47/51; B65G47/5104; B65G47/5109; B65G47/5136
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) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |