US2531937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ornamental display device
Assignee: Individual
•
Filing: 1948-06-01
•
Granted: 1950-11-28
•
Expires: 1968-06-01
Abstract
No abstract record available.
Inventors
- 👤 Harvey H Gratiot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:15
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/0001; G02B6/0011; G02B6/0081; G02B6/0086; G02B6/0091; B; B44; B44F; B44F1/00; B44F1/02; G02B6/0066; G02B6/007; G02B6/0071; G09; G09F; G09F13/00; G09F13/18; G09F2013/1886; G09F2013/189
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US485032A
Cited
GB191220A
Cited
US1707965A
Cited
US1933803A
Cited
US1936734A
Cited
FR771394A
Cited
US2262930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |