Patent US1954868A successfully refreshed from Google Patents.
US952477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for assembling shells in shell-holders.
Assignee: DuPont Powder Coatings USA Inc
•
Filing: 1909-04-17
•
Granted: 1910-03-22
•
Expires: 1929-04-17
Abstract
No abstract record available.
Inventors
- 👤 Howard A Stillwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:45
CPC Classifications
F; F41; F41A; F41A9/00; F41A9/82; F41A9/83
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1913-03-21 | 1913-09-20 | 1914-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-03-21 | 1917-09-20 | 1918-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-03-21 | 1921-09-20 | 1922-03-22 | $7700.00 | Window Closed / Lapsed |