Patent US2780496A successfully refreshed from Google Patents.
US2780496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-component spray gun
Assignee: Sherwin Williams Co
•
Filing: 1952-11-29
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Granted: 1957-02-05
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Expires: 1972-11-29
Abstract
No abstract record available.
Inventors
- 👤 Hans J Asbeck
- 👤 Frank E Ehrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:41
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/02; B05B7/12; B05B7/1209; B05B7/04; B05B7/0408; B05B7/24; B05B7/2489; B05B7/2497
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1936997A
Cited
US1939607A
Cited
US1958730A
Cited
GB383768A
Cited
US2335116A
Cited
US2504116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |