US2883942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grouping conveyor mechanism
Assignee: Individual
•
Filing: 1956-02-28
•
Granted: 1959-04-28
•
Expires: 1976-02-28
Abstract
No abstract record available.
Inventors
- 👤 Fred I Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:40
CPC Classifications
B; B61; B61B; B61B10/00; B61B10/02; B61B10/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1875535A
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US1420115A
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US1921109A
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DE701610C
Cited
US2593699A
Cited
US2510318A
Cited
US2586264A
Cited
US2612847A
Cited
FR1072898A
Cited
US2751852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |