US2638730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water spraying and debris moving device
Assignee: Individual
•
Filing: 1950-08-29
•
Granted: 1953-05-19
•
Expires: 1970-08-29
Abstract
No abstract record available.
Inventors
- 👤 Guy C Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:28
CPC Classifications
A; A01; A01G; A01G25/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US736878A
Cited
US1275382A
Cited
US1724702A
Cited
US1932137A
Cited
US2144890A
Cited
US2246640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-18 | 1956-11-17 | 1957-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-18 | 1960-11-17 | 1961-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-18 | 1964-11-17 | 1965-05-19 | $7700.00 | Window Closed / Lapsed |