US2728322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilation system for automatic spraying machines
Assignee: Individual
•
Filing: 1952-02-15
•
Granted: 1955-12-27
•
Expires: 1972-02-15
Abstract
No abstract record available.
Inventors
- 👤 Szczepanski Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:09
CPC Classifications
B; B05; B05B; B05B12/00; B05B12/16; Y; Y10; Y10S; Y10S55/00; Y10S55/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1608082A
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US1741155A
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US1682407A
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US2132826A
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US2106187A
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US2227481A
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US2257516A
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US2310205A
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US2350708A
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US2486251A
Cited
US2602417A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |