Patent US1230669A successfully refreshed from Google Patents.
US1230669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dimming headlight-lens.
Assignee: PRIMOLITE CO
•
Filing: 1916-04-27
•
Granted: 1917-06-19
•
Expires: 1936-04-27
Abstract
No abstract record available.
Inventors
- 👤 Ulysses G Cassady
- 👤 Lawrence W George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:49
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/0001; G02B6/0011; G02B6/0033; G02B6/005; G02B6/0053; F; F21; F21S; F21S41/00; F21S41/20; F21S41/28
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) | 1920-06-18 | 1920-12-18 | 1921-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-06-18 | 1924-12-18 | 1925-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-06-18 | 1928-12-18 | 1929-06-19 | $7700.00 | Window Closed / Lapsed |