US2336384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface hardening of linear polyamide bodies
Assignee: AT&T Inc
•
Filing: 1941-06-10
•
Granted: 1943-12-07
•
Expires: 1961-06-10
Abstract
No abstract record available.
Inventors
- 👤 William O Baker
- 👤 Norman R Pape
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:22
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/02; C08J7/08; C08J2377/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/24983; Y10T428/31; Y10T428/31504; Y10T428/31725; Y10T428/31739
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-12-06 | 1947-06-07 | 1947-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-12-06 | 1951-06-07 | 1951-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-12-06 | 1955-06-07 | 1955-12-07 | $7700.00 | Window Closed / Lapsed |