US3471111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shelf anchor
Assignee: PX Industries Inc USA
•
Filing: 1967-08-22
•
Granted: 1969-10-07
•
Expires: 1987-08-22
Abstract
No abstract record available.
Inventors
- 👤 Paul M Macdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:11
CPC Classifications
A; A47; A47B; A47B96/00; A47B96/06; A47B96/063; A47B2220/00; A47B2220/0036; A47B2220/0041; A47B96/02; A47B96/027
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) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |