US2870515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold assembly for manufacturing concrete inlet tops for storm drains
Assignee: Individual
•
Filing: 1957-09-19
•
Granted: 1959-01-27
•
Expires: 1977-09-19
Abstract
No abstract record available.
Inventors
- 👤 Parfitt John William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:06
CPC Classifications
E; E03; E03F; E03F5/00; E03F5/04; E03F5/041; B; B28; B28B; B28B7/00; B28B7/16; B28B7/18; E03F5/0401; E03F2005/0412; E03F2005/0413; Y; Y10; Y10S; Y10S249/00; Y10S249/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2681495A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |