Patent US1662670A successfully refreshed from Google Patents.
US1662670A
Expired / Lapsed
US
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Measuring instrument
Assignee: Individual
•
Filing: 1927-09-19
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Granted: 1928-03-13
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Expires: 1947-09-19
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Harter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:37
CPC Classifications
A; A61; A61C; A61C19/00; A61C19/04; A61B; A61B5/00; A61B5/103; A61B5/107; A61B5/45; A61B5/4538; A61B5/4542; A61B5/4547; A61B5/68; A61B5/6801; A61B5/6813; A61B5/6814; A61B5/6815; A61B5/6816
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) | 1931-03-13 | 1931-09-12 | 1932-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-03-13 | 1935-09-12 | 1936-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-03-13 | 1939-09-12 | 1940-03-13 | $7700.00 | Window Closed / Lapsed |