US2766652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for determining the degree of rotation of polarized light
Assignee: Individual
•
Filing: 1951-12-03
•
Granted: 1956-10-16
•
Expires: 1971-12-03
Abstract
No abstract record available.
Inventors
- 👤 Austin N Stanton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:34
CPC Classifications
G; G01; G01J; G01J4/00; G01J4/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR501330A
Cited
FR23617E
Cited
US1746616A
Cited
US1848874A
Cited
DE724224C
Cited
US2203720A
Cited
US2324304A
Cited
US2427013A
Cited
US2580500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |