US620476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Henry colbeck michell
Assignee: —
•
Filing: —
•
Granted: 1899-02-28
•
Expires: 1916-02-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:48
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/001; B29C48/03; B29C48/09; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10T; Y10T152/00; Y10T152/10; Y10T152/10135; Y10T152/10144; Y10T156/00; Y10T156/10; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/25; Y10T428/251; Y10T428/29; Y10T428/2911
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) | 1902-02-28 | 1902-08-30 | 1903-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1906-02-28 | 1906-08-30 | 1907-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1910-02-28 | 1910-08-30 | 1911-03-01 | $7700.00 | Window Closed / Lapsed |