Patent US2797184A successfully refreshed from Google Patents.
Patent US984557A successfully refreshed from Google Patents.
US984557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
gorter
Assignee: —
•
Filing: —
•
Granted: 1911-02-21
•
Expires: 1928-02-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:42
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/14; F21V21/26; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32041; Y10T403/32049
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) | 1914-02-20 | 1914-08-22 | 1915-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-02-20 | 1918-08-22 | 1919-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-02-20 | 1922-08-22 | 1923-02-21 | $7700.00 | Window Closed / Lapsed |