US3461434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stack mechanism having multiple display registers
Assignee: Unisys Corp
•
Filing: 1967-10-02
•
Granted: 1969-08-12
•
Expires: 1987-10-02
Abstract
No abstract record available.
Inventors
- 👤 Robert S Barton
- 👤 Bobby A Creech
- 👤 Benjamin A Dent
- 👤 William M Mckeeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:20
CPC Classifications
G; G06; G06F; G06F9/00; G06F9/06; G06F9/30; G06F9/34; G06F9/355; G06F13/00; G06F9/44; G06F9/448; G06F9/4482; G06F9/4484
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |