US3087043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making spinnerettes
Assignee: Engelhard Industries Inc
•
Filing: 1960-06-23
•
Granted: 1963-04-23
•
Expires: 1980-06-23
Abstract
No abstract record available.
Inventors
- 👤 Hofer Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:17
CPC Classifications
B; B23; B23H; B23H9/00; B23H9/14; B21; B21C; B21C25/00; B21C25/10; B23D; B23D37/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
THE METHOD OF MAKING A SPINNERETTE COMPRISING
Claim 2
Independent Claim
7 words
THE METHOD OF MAKING A SPINNERETTE COMPRISING
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) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |