US999813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial-light-diffusing apparatus.
Assignee: Individual
•
Filing: 1909-06-21
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Granted: 1911-08-08
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Expires: 1929-06-21
Abstract
No abstract record available.
Inventors
- 👤 North Losey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:29
CPC Classifications
F; F21; F21S; F21S6/00; F21S6/002; F21S13/00; F21S13/02; F21S13/04; F21S13/12; F21S8/00; F21S8/04; F21S8/06; F21V; F21V14/00; F21V14/04; F21V27/00; F21V7/00; F21V7/0008
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) | 1914-08-07 | 1915-02-06 | 1915-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-08-07 | 1919-02-06 | 1919-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-08-07 | 1923-02-06 | 1923-08-08 | $7700.00 | Window Closed / Lapsed |