US1898059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Securing means for spectacles
Assignee: Individual
•
Filing: 1931-08-06
•
Granted: 1933-02-21
•
Expires: 1951-08-06
Abstract
No abstract record available.
Inventors
- 👤 Leland J Mcdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:12
CPC Classifications
G; G02; G02C; G02C3/00; G02C3/04; G02C11/00; Y; Y10; Y10T; Y10T24/00; Y10T24/13; Y10T24/1321; Y10T24/1324; Y10T24/1347; Y10T24/1376; Y10T24/1394
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1936-02-21 | 1936-08-22 | 1937-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-02-21 | 1940-08-22 | 1941-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-02-21 | 1944-08-22 | 1945-02-21 | $7700.00 | Window Closed / Lapsed |