Patent US1162660A successfully refreshed from Google Patents.
US1162660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens for lamps.
Assignee: Individual
•
Filing: 1915-03-02
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Granted: 1915-11-30
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Expires: 1935-03-02
Abstract
No abstract record available.
Inventors
- 👤 James R Shirreffs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:43
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
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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) | 1918-11-29 | 1919-05-31 | 1919-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-11-29 | 1923-05-31 | 1923-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-11-29 | 1927-05-31 | 1927-11-30 | $7700.00 | Window Closed / Lapsed |