US3360429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction box cover
Assignee: Individual
•
Filing: 1964-12-10
•
Granted: 1967-12-26
•
Expires: 1984-12-10
Abstract
No abstract record available.
Inventors
- 👤 Proulx Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:36
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/48; D21F1/52; D21F1/523
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A SUCTION BOX COVER COMPRISING A ROW OF JUXTAPOSED MOULDED BLOCKS WITH COMPLEMENTARY SHALLOW GROOVES EXTENDING THE LENGTH OF THE BLOCKS IN CONFRONTING FACES OF ADJOINING BLOCKS THAT TOGETHER FORM A COOPERATIVE PASSAGEWAY AND AN ELONGATED METAL REINFORCING SPLINE DISPOSED BETWEEN ADJOINING BLOCKS AND COOPERATIVELY HOUSED IN SAID COMPLEMENTARY GROOVES.
Claim 2
Dependent Claim
50 words
A SUCTION BOX COVER COMPRISING A ROW OF JUXTAPOSED MOULDED BLOCKS WITH COMPLEMENTARY SHALLOW GROOVES EXTENDING THE LENGTH OF THE BLOCKS IN CONFRONTING FACES OF ADJOINING BLOCKS THAT TOGETHER FORM A COOPERATIVE PASSAGEWAY AND AN ELONGATED METAL REINFORCING SPLINE DISPOSED BETWEEN ADJOINING BLOCKS AND COOPERATIVELY HOUSED IN SAID COMPLEMENTARY GROOVES.
References Cited (Backward Citations)
US2408176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |