US2504476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collecting and dumping assembly
Assignee: Individual
•
Filing: 1947-07-16
•
Granted: 1950-04-18
•
Expires: 1967-07-16
Abstract
No abstract record available.
Inventors
- 👤 Ralph F Volk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:40
CPC Classifications
B; B28; B28C; B28C7/00; B28C7/04; B28C7/06; B28C7/08; B28C7/0823
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1431104A
Cited
US1694355A
Cited
US1761801A
Cited
FR734299A
Cited
US2060867A
Cited
US2268568A
Cited
US2327473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-17 | 1953-10-17 | 1954-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-17 | 1957-10-17 | 1958-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-17 | 1961-10-17 | 1962-04-18 | $7700.00 | Window Closed / Lapsed |