US3542452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transitory hologram apparatus
Assignee: RCA Corp
•
Filing: 1967-03-20
•
Granted: 1970-11-24
•
Expires: 1987-03-20
Abstract
No abstract record available.
Inventors
- 👤 Hendrik J Gerritsen
- 👤 Henry S Sommers Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:43
CPC Classifications
G; G03; G03H; G03H1/00; G03H1/02; G03H1/04; G03H1/06; G03H2001/026; G03H2001/0268; G03H1/0486; G03H2001/0491; G03H2224/00; G03H2224/06; G03H2260/00; G03H2260/30; G03H2260/35; G03H2260/36; G03H2260/50; G03H2260/54
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-23 | 1974-05-25 | 1974-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-23 | 1978-05-25 | 1978-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-23 | 1982-05-25 | 1982-11-24 | $7700.00 | Window Closed / Lapsed |