Patent US4096132A successfully refreshed from Google Patents.
Patent US3059405A successfully refreshed from Google Patents.
US2790979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring assembly for upholstery
Assignee: Nachman Corp
•
Filing: 1954-11-08
•
Granted: 1957-05-07
•
Expires: 1974-11-08
Abstract
No abstract record available.
Inventors
- 👤 William W Gleason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:22
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/04; A47C27/06; A47C27/063; A47C27/064
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) | 1960-05-06 | 1960-11-05 | 1961-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-06 | 1964-11-05 | 1965-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-06 | 1968-11-05 | 1969-05-07 | $7700.00 | Window Closed / Lapsed |