US3264992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tamping plug
Assignee: Individual
•
Filing: 1964-03-09
•
Granted: 1966-08-09
•
Expires: 1984-03-09
Abstract
No abstract record available.
Inventors
- 👤 Marlin E Beck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:20
CPC Classifications
F; F42; F42D; F42D1/00; F42D1/08; F42D1/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A PAIR OF BLASTIN G PLUG ELEMENTS, EACH OF SAID ELEMENTS COMPRISING AN EXPANDABLE WEDGE OF DEFORMABLE MATERIAL, EACH OF SAID WEDGES BEING A COMPLEMENT OF THE OTHER AND HAVING A HEAD PORTION AND A PLURALITY OF SPACED LEGS EXTENDING LONGITUDINALLY OF SAID HEAD PORTION WITH COMPLEMENTARY SPACES BETWEEN SAID LEGS, OF THE LEGS OF ONE OF SAID WEDGES BEING CAPABLE OF BEING WEDGE INTO A CORRESPONDING SPACE OF THE OTHER WEDGE.
Claim 2
Dependent Claim
72 words
A PAIR OF BLASTIN G PLUG ELEMENTS, EACH OF SAID ELEMENTS COMPRISING AN EXPANDABLE WEDGE OF DEFORMABLE MATERIAL, EACH OF SAID WEDGES BEING A COMPLEMENT OF THE OTHER AND HAVING A HEAD PORTION AND A PLURALITY OF SPACED LEGS EXTENDING LONGITUDINALLY OF SAID HEAD PORTION WITH COMPLEMENTARY SPACES BETWEEN SAID LEGS, OF THE LEGS OF ONE OF SAID WEDGES BEING CAPABLE OF BEING WEDGE INTO A CORRESPONDING SPACE OF THE OTHER WEDGE.
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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |