Patent US2672143A successfully refreshed from Google Patents.
US2672143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spraying device
Assignee: Individual
•
Filing: 1952-12-05
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Granted: 1954-03-16
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Expires: 1972-12-05
Abstract
No abstract record available.
Inventors
- 👤 Joseph K Gold
- 👤 Harold D Rickless
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:30
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/02; A61C17/0211
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |