US2481279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical spraying device
Assignee: Individual
•
Filing: 1947-03-08
•
Granted: 1949-09-06
•
Expires: 1967-03-08
Abstract
No abstract record available.
Inventors
- 👤 Louis L Barr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:28
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/24; B05B7/2402; B05B7/2462; A; A01; A01C; A01C23/00; A01C23/04; A01C23/042; B05B7/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-05 | 1953-03-07 | 1953-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-05 | 1957-03-07 | 1957-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-05 | 1961-03-07 | 1961-09-06 | $7700.00 | Window Closed / Lapsed |