US2568630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Admiral Corp
•
Filing: 1949-11-22
•
Granted: 1951-09-18
•
Expires: 1969-11-22
Abstract
No abstract record available.
Inventors
- 👤 John L Hoellerich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:43
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/08; G05G1/10; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7153; Y10T70/7424; Y10T70/7435
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US934694A
Cited
US1508465A
Cited
US1622783A
Cited
US1882584A
Cited
GB440607A
Cited
US2067871A
Cited
GB475121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |