US3537929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing molded shape foam laminates
Assignee: DAVID B F STRACHAN
•
Filing: 1969-06-16
•
Granted: 1970-11-03
•
Expires: 1989-06-16
Abstract
No abstract record available.
Inventors
- 👤 Donald G Keith
- 👤 David B F Strachan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:41
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/20; B29C44/30; B32; B32B; B32B5/00; B32B5/18; B32B15/00; B32B15/04; B32B15/046; B32B15/18; B32B15/20; B32B27/00; B32B27/06; B32B27/065; B32B29/00; B32B29/002; B32B29/007; C; C08; C08J; C08J9/00; C08J9/34; B29L; B29L2007/00; B29L2009/00; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0221; B32B2266/0228; B32B2266/0235; B32B2266/025; B32B2266/0271; B32B2266/0278; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24752
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |