Patent US4663539A successfully refreshed from Google Patents.
Patent US3464569A successfully refreshed from Google Patents.
US3464569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foldable display stand
Assignee: DOWNING DISPLAYS
•
Filing: 1967-11-20
•
Granted: 1969-09-02
•
Expires: 1987-11-20
Abstract
No abstract record available.
Inventors
- 👤 John G Downing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:31
CPC Classifications
A; A47; A47F; A47F11/00; A47F11/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1392337A
Cited
US1555554A
Cited
US1852471A
Cited
US2674377A
Cited
US3089632A
Cited
US3139192A
Cited
US3420362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |