Patent US3950508A successfully refreshed from Google Patents.
Patent US2795461A successfully refreshed from Google Patents.
US2795461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray gun for viscous materials
Assignee: Individual
•
Filing: 1955-02-14
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Granted: 1957-06-11
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Expires: 1975-02-14
Abstract
No abstract record available.
Inventors
- 👤 William M Durkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:32
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/16; B05B7/1606; B05B7/1613; B05B7/1633
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1285788A
Cited
US1247088A
Cited
US1644081A
Cited
US1748004A
Cited
US1748604A
Cited
US1792551A
Cited
US2114661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-10 | 1960-12-10 | 1961-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-10 | 1964-12-10 | 1965-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-10 | 1968-12-10 | 1969-06-11 | $7700.00 | Window Closed / Lapsed |