US600849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door-knob
Assignee: —
•
Filing: —
•
Granted: 1898-03-15
•
Expires: 1915-03-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:26
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/02; Y; Y10; Y10T; Y10T292/00; Y10T292/82; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20834; Y10T74/2084
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) | 1901-03-15 | 1901-09-14 | 1902-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1905-03-15 | 1905-09-14 | 1906-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1909-03-15 | 1909-09-14 | 1910-03-16 | $7700.00 | Window Closed / Lapsed |