US3523246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for testing a laminar material for irregularities of thickness
Assignee: Individual
•
Filing: 1968-07-22
•
Granted: 1970-08-04
•
Expires: 1988-07-22
Abstract
No abstract record available.
Inventors
- 👤 Brian Reginald Hall
- 👤 Denis Manktelow Neale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:06
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/02; G01B7/06; G01B7/08; G01B7/087; G01B7/085; G01N; G01N27/00; G01N27/02; G01N27/22; G01N27/24
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |