US2900870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projection screen
Assignee: Individual
•
Filing: 1954-04-09
•
Granted: 1959-08-25
•
Expires: 1974-04-09
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:15
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB182311A
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US1623047A
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US2060817A
Cited
US2357819A
Cited
US2369143A
Cited
US2379446A
Cited
US2361614A
Cited
US2486206A
Cited
US2580536A
Cited
US2473301A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |