US2033645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distributing system for classifying objects
Assignee: Mathews Conveyer Co
•
Filing: 1931-09-21
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Granted: 1936-03-10
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Expires: 1951-09-21
Abstract
No abstract record available.
Inventors
- 👤 James R Parkhill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:29
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/04; B07C5/10; Y; Y10; Y10S; Y10S209/00; Y10S209/934
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-03-10 | 1939-09-09 | 1940-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-03-10 | 1943-09-09 | 1944-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-03-10 | 1947-09-09 | 1948-03-10 | $7700.00 | Window Closed / Lapsed |