US2177160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating veneers
Assignee: ANNA M TISCHER
•
Filing: 1936-11-23
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Granted: 1939-10-24
•
Expires: 1956-11-23
Abstract
No abstract record available.
Inventors
- 👤 Anna M Tischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:25
CPC Classifications
B; B27; B27K; B27K3/00; B27K3/02; B27K3/0278; B27D; B27D1/00; B27K3/15; B27K3/156; B27K5/00; B27K5/001; B27K5/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-10-23 | 1943-04-24 | 1943-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-10-23 | 1947-04-24 | 1947-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-10-23 | 1951-04-24 | 1951-10-24 | $7700.00 | Window Closed / Lapsed |