US2570035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means of wet screen sizing
Assignee: Individual
•
Filing: 1949-02-28
•
Granted: 1951-10-02
•
Expires: 1969-02-28
Abstract
No abstract record available.
Inventors
- 👤 William C Laughlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:50
CPC Classifications
B; B07; B07B; B07B1/00; B07B2230/00; B07B2230/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1040804A
Cited
US1465931A
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US1468261A
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US1716309A
Cited
US2196451A
Cited
US2420180A
Cited
US2410637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |