Patent US2673121A successfully refreshed from Google Patents.
US2673121A
Expired / Lapsed
US
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Apparatus for spraying thermoplastic material
Assignee: Individual
•
Filing: 1948-08-18
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Granted: 1954-03-23
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Expires: 1968-08-18
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Brennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:20
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/16; B05B7/18; B29; B29B; B29B9/00; B29B9/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1721092A
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GB385857A
Cited
US2137442A
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US2231247A
Cited
GB483517A
Cited
US2334814A
Cited
GB553099A
Cited
US2410225A
Cited
US2411409A
Cited
GB607654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |