Patent US2690355A successfully refreshed from Google Patents.
US2690355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spraying device for attachment to tractors
Assignee: Engine Parts Manuf Co
•
Filing: 1948-02-26
•
Granted: 1954-09-28
•
Expires: 1968-02-26
Abstract
No abstract record available.
Inventors
- 👤 Harold A Walters
- 👤 Glenn A Tanner
- 👤 Jr Harold D North
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:47
CPC Classifications
A; A01; A01M; A01M7/00; A01M7/005; A01M7/0053; B; B05; B05B; B05B1/00; B05B1/02; B05B1/04; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32819; Y10T403/32852
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US926791A
Cited
US978082A
Cited
US947297A
Cited
US999676A
Cited
US1118091A
Cited
US1583619A
Cited
US1634701A
Cited
US1883479A
Cited
US1987962A
Cited
US1887092A
Cited
US2169948A
Cited
US2221433A
Cited
US2273344A
Cited
US2210346A
Cited
US2266223A
Cited
US2305913A
Cited
US2252206A
Cited
US2359300A
Cited
US2548209A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |