Patent US2518010A successfully refreshed from Google Patents.
US2518010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stencil card making machine
Assignee: International Business Machines Corp
•
Filing: 1947-02-12
•
Granted: 1950-08-08
•
Expires: 1967-02-12
Abstract
No abstract record available.
Inventors
- 👤 Richard H Holmwood
- 👤 Paul A Hauck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:54
CPC Classifications
B; B41; B41J; B41J3/00; B41J3/38; Y; Y10; Y10S; Y10S493/00; Y10S493/916; Y10S493/917; Y10S493/919; Y10S493/953
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US667822A
Cited
US1121080A
Cited
US1073393A
Cited
US1135786A
Cited
US1562085A
Cited
US1831167A
Cited
US1872130A
Cited
GB401409A
Cited
US2203706A
Cited
US2405637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |