US2929135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for manufacturing multiple coil springs for slide fasteners and method of attachment
Assignee: Stahlwerk Kabel C Pouplier Jr
•
Filing: 1957-11-05
•
Granted: 1960-03-22
•
Expires: 1977-11-05
Abstract
No abstract record available.
Inventors
- 👤 Cromberg Otto
- 👤 Pritzbuer Gustav
- 👤 Winterhoff Walter
- 👤 Mayer Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:36
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/04; A; A44; A44B; A44B19/00; A44B19/24; A44B19/40; A44B19/406; B; B21; B21D; B21D53/00; B21D53/46; B21D53/50; B21F; B21F3/00; B21F3/02; B21F3/04; B21F35/00; B21F35/003; D; D05; D05B; D05B3/00; D05B3/12; D05B3/18; D05B29/00; D05B29/06; D05B73/00; D05B73/04; D05B73/12; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2518; Y10T24/2527; Y10T29/00; Y10T29/49; Y10T29/49782; Y10T29/49785
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) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |