US3388039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming asbestos cement pipes
Assignee: J-M A/C PIPE Corp A DE CORP
•
Filing: 1964-12-30
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Granted: 1968-06-11
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Expires: 1984-12-30
Abstract
No abstract record available.
Inventors
- 👤 Robert P Gillis
- 👤 Quint Stephen Mark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:56
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/42; B28B21/48; B28B21/02; B28B21/08
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) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |