US1643019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stencil sheet
Assignee: HEYER DUPLICATOR CO Inc
•
Filing: 1926-12-06
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Granted: 1927-09-20
•
Expires: 1946-12-06
Abstract
No abstract record available.
Inventors
- 👤 William H Kurth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:48
CPC Classifications
B; B41; B41N; B41N1/00; B41N1/24; B41N1/243; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249962; Y10T428/249963; Y10T428/31504; Y10T428/31844; Y10T428/31848; Y10T428/31851
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) | 1930-09-19 | 1931-03-21 | 1931-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-09-19 | 1935-03-21 | 1935-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-09-19 | 1939-03-21 | 1939-09-20 | $7700.00 | Window Closed / Lapsed |