Patent US4488439A successfully refreshed from Google Patents.
Patent US1608165A successfully refreshed from Google Patents.
US1608165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tion of dei
Assignee: —
•
Filing: —
•
Granted: 1926-11-23
•
Expires: 1943-11-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:51
CPC Classifications
D; D06; D06B; D06B3/00; D06B3/10; D06B2700/00; D06B2700/27; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/4971; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2927; Y10T428/2933; Y10T428/294; Y10T428/2942; Y10T428/2944; Y10T428/2947; Y10T428/2964; Y10T428/2967; Y10T428/31504; Y10T428/31652; Y10T442/00; Y10T442/30; Y10T442/3049
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) | 1929-11-22 | 1930-05-24 | 1930-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-11-22 | 1934-05-24 | 1934-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-11-22 | 1938-05-24 | 1938-11-23 | $7700.00 | Window Closed / Lapsed |