US2928512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural assemblies
Assignee: Proctor and Schwartz Inc
•
Filing: 1956-11-14
•
Granted: 1960-03-15
•
Expires: 1976-11-14
Abstract
No abstract record available.
Inventors
- 👤 Howard W Slater
- 👤 John J Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:07
CPC Classifications
A; A47; A47B; A47B57/00; A47B57/30; A47B57/54; A47B57/56; A47B57/565; F; F16; F16B; F16B37/00; F16B37/04; F16B37/045; F16B7/00; F16B7/04; F16B7/044; F16B7/0446; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32426; Y10T403/32442; Y10T403/32451; Y10T403/32459
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) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |