US2704144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delivery chute
Assignee: Individual
•
Filing: 1952-03-28
•
Granted: 1955-03-15
•
Expires: 1972-03-28
Abstract
No abstract record available.
Inventors
- 👤 Rety Stephen Paul
- 👤 Moore John Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:31
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/02; B65G47/04; B65G47/12; B65G47/14; B65G47/1407; B65G47/1442; B65G47/1457
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US582988A
Cited
US752341A
Cited
US1320993A
Cited
US1644999A
Cited
US2004349A
Cited
US2303976A
Cited
US2325757A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-03-14 | 1958-09-13 | 1959-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-14 | 1962-09-13 | 1963-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-14 | 1966-09-13 | 1967-03-15 | $7700.00 | Window Closed / Lapsed |