Patent FR1313414A successfully refreshed from Google Patents.
US2423261A
Expired / Lapsed
US
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Germicidal product and method of producing same
Assignee: Individual
•
Filing: 1943-06-04
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Granted: 1947-07-01
•
Expires: 1963-06-04
Abstract
No abstract record available.
Inventors
- 👤 Frank J Sowa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:11
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/0072; C04B41/0081; Y; Y10; Y10S; Y10S260/00; Y10S260/47; Y10S428/00; Y10S428/907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE537512C
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US1947519A
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US2040806A
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US2129376A
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US2250345A
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US2241829A
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US2411815A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-30 | 1950-12-30 | 1951-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-30 | 1954-12-30 | 1955-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-30 | 1958-12-30 | 1959-07-01 | $7700.00 | Window Closed / Lapsed |