US2809519A
Expired / Lapsed
US
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Web flatness indicator
Assignee: Olin Corp
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Filing: 1954-09-22
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Granted: 1957-10-15
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Expires: 1974-09-22
Abstract
No abstract record available.
Inventors
- 👤 Paul T Kaestner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:37
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/28; G01B7/287; B; B21; B21B; B21B38/00; B21B38/02; B21B38/06; B29; B29C; B29C48/00; B29C48/25; B29C48/92; G01L; G01L5/00; G01L5/04; G01L5/045; B29C2948/00; B29C2948/92; B29C2948/92009; B29C2948/92114; B29C2948/92171; B29C2948/92323; B29C2948/92447; B29C2948/92504; B29C2948/92523; B29C2948/92609; B29C2948/92666
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) | 1960-10-14 | 1961-04-15 | 1961-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-14 | 1965-04-15 | 1965-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-14 | 1969-04-15 | 1969-10-15 | $7700.00 | Window Closed / Lapsed |