US2632359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planetarium
Assignee: Individual
•
Filing: 1948-05-03
•
Granted: 1953-03-24
•
Expires: 1968-05-03
Abstract
No abstract record available.
Inventors
- 👤 Armand N Spitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:35
CPC Classifications
G; G09; G09B; G09B27/00; G09B27/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US575735A
Cited
US1814984A
Cited
US1857546A
Cited
US1959601A
Cited
US2178352A
Cited
US2153053A
Cited
US2424601A
Cited
US2477027A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |