Patent US2428292A successfully refreshed from Google Patents.
US2428292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spraying device for coating the inside of pipe
Assignee: Individual
•
Filing: 1944-11-16
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Granted: 1947-09-30
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Expires: 1964-11-16
Abstract
No abstract record available.
Inventors
- 👤 Chester V Queen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:56
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/02; B05B7/08; B05B7/0807; B05B13/00; B05B13/06; B05B13/0627; B05B7/0892; B05B1/00; B05B1/26; B05B1/262; B05B1/265; Y; Y10; Y10S; Y10S118/00; Y10S118/10
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) | 1950-09-29 | 1951-03-31 | 1951-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-29 | 1955-03-31 | 1955-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-29 | 1959-03-31 | 1959-09-30 | $7700.00 | Window Closed / Lapsed |