US2549467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhibitor member
Assignee: HARRIET H GOLD
•
Filing: 1948-06-08
•
Granted: 1951-04-17
•
Expires: 1968-06-08
Abstract
No abstract record available.
Inventors
- 👤 Hopp Philip
- 👤 Hopp Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:31
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/08; G09F3/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US641522A
Cited
US1330684A
Cited
US1670291A
Cited
US1748193A
Cited
US1790157A
Cited
US1848262A
Cited
US2007077A
Cited
US2176713A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |