US1442166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
macbeth
Assignee: —
•
Filing: —
•
Granted: 1923-01-16
•
Expires: 1940-01-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:37
CPC Classifications
F; F21; F21V; F21V9/00; F21V9/02
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) | 1926-01-15 | 1926-07-17 | 1927-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-01-15 | 1930-07-17 | 1931-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-01-15 | 1934-07-17 | 1935-01-16 | $7700.00 | Window Closed / Lapsed |