Patent US1270640A successfully refreshed from Google Patents.
US1270640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Goggles.
Assignee: Individual
•
Filing: 1917-03-28
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Granted: 1918-06-25
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Expires: 1937-03-28
Abstract
No abstract record available.
Inventors
- 👤 Edwin George Joseph Markham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:51
CPC Classifications
G; G02; G02C; G02C7/00; G02C7/16
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) | 1921-06-24 | 1921-12-24 | 1922-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-06-24 | 1925-12-24 | 1926-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-06-24 | 1929-12-24 | 1930-06-25 | $7700.00 | Window Closed / Lapsed |