US3216304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
One-piece bolt anchor
Assignee: US EXPANSION BOLT COMPANY A CORP OF PA
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Filing: 1964-04-02
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Granted: 1965-11-09
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Expires: 1984-04-02
Abstract
No abstract record available.
Inventors
- 👤 John J James
- 👤 Carleton H Bunker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:28
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/04; F16B13/06; F16B13/063; F16B13/066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A BOLT ANCHOR COMPRISING A SHELL PORTION HAVING A SUBSTANTIALLY CYLINDRICAL INTERNAL BORE WITH A SUBSTANTIALLY CONSTANT INSIDE DIAMETER, SAID SHELL PORTION INCLUDING AN INNER END SECTION WHOSE OUTSIDE DIAMETER PROGRESSIVELY DECREASES TOWARDS ITS INNER END, A HEAD SECTION, AND A BODY SECTION DISPOSED BETWEEN SAID HEAD SECTION AND SAID INNER END SECTION, SAID HEAD SECTION HAVING A GREATER OUTSIDE DIAMETER THAN SAID BODY SECTION; A TAPERED NUT PORTION HAVING A SMALLER END WITH A DIAMETER SLIGHTLY SMALLER THAN THE DIAMETER OF SAID BORE ADJACENT THERETO AND A SUBSTANTIALLY CYLINDRICAL LARGER END PORTION WITH A DIAMETER SLIGHTLY LESS THAN THE OUTSIDE DIAMETER OF SAID BODY SECTION OF SAID SHELL PORTION, SAID SMALLER END EXTENDING INTO SAID
Claim 2
Dependent Claim
116 words
A BOLT ANCHOR COMPRISING A SHELL PORTION HAVING A SUBSTANTIALLY CYLINDRICAL INTERNAL BORE WITH A SUBSTANTIALLY CONSTANT INSIDE DIAMETER, SAID SHELL PORTION INCLUDING AN INNER END SECTION WHOSE OUTSIDE DIAMETER PROGRESSIVELY DECREASES TOWARDS ITS INNER END, A HEAD SECTION, AND A BODY SECTION DISPOSED BETWEEN SAID HEAD SECTION AND SAID INNER END SECTION, SAID HEAD SECTION HAVING A GREATER OUTSIDE DIAMETER THAN SAID BODY SECTION; A TAPERED NUT PORTION HAVING A SMALLER END WITH A DIAMETER SLIGHTLY SMALLER THAN THE DIAMETER OF SAID BORE ADJACENT THERETO AND A SUBSTANTIALLY CYLINDRICAL LARGER END PORTION WITH A DIAMETER SLIGHTLY LESS THAN THE OUTSIDE DIAMETER OF SAID BODY SECTION OF SAID SHELL PORTION, SAID SMALLER END EXTENDING INTO SAID
References Cited (Backward Citations)
US683082A
Cited
US1182015A
Cited
FR505145A
Cited
US1469667A
Cited
US1808318A
Cited
US2102230A
Cited
US2120577A
Cited
GB647380A
Cited
US3089377A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |