US1928209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perforated record card
Assignee: International Business Machines Corp
•
Filing: 1930-02-07
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Granted: 1933-09-26
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Expires: 1950-02-07
Abstract
No abstract record available.
Inventors
- 👤 Albert W Mills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:39
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/08; B67D7/16; B67D7/163; B67D7/166; G; G06; G06K; G06K19/00; G06K19/04
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) | 1936-09-25 | 1937-03-27 | 1937-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-09-25 | 1941-03-27 | 1941-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-09-25 | 1945-03-27 | 1945-09-26 | $7700.00 | Window Closed / Lapsed |