Patent US2655657A successfully refreshed from Google Patents.
US2655657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective device for the eyes
Assignee: Individual
•
Filing: 1949-11-30
•
Granted: 1953-10-20
•
Expires: 1969-11-30
Abstract
No abstract record available.
Inventors
- 👤 Ervin J Lueders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:11
CPC Classifications
G; G02; G02C; G02C7/00; G02C7/02; G02C7/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1313469A
Cited
FR744586A
Cited
AT32884B
Cited
US1564663A
Cited
US1635328A
Cited
FR612827A
Cited
US1696198A
Cited
US1722120A
Cited
FR775826A
Cited
GB467299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |