US3355772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mould for foaming rubber rollers
Assignee: Individual
•
Filing: 1965-10-21
•
Granted: 1967-12-05
•
Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 Frithjof N Kolberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:27
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0032; B29D99/0035; B29L; B29L2031/00; B29L2031/32; B29L2031/324
Claims Analysis
Total Claims: 0
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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) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |