Patent US3333251A successfully refreshed from Google Patents.
US3333251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
File storage system
Assignee: International Business Machines Corp
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Filing: 1964-11-13
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Granted: 1967-07-25
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Expires: 1984-11-13
Abstract
No abstract record available.
Inventors
- 👤 James G Brenza
- 👤 Jr Perry O Crawford
- 👤 Arthur A Kusnick
- 👤 Maire Orville R La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:52
CPC Classifications
G; G06; G06F; G06F12/00; G06F12/02; G06F12/08; Y; Y10; Y10S; Y10S707/00; Y10S707/99951; Y10S707/99952; Y10S707/99953; Y10S707/99955
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A HIERARCHY STORAGE SYSTEM COMPRISING: A PLURALITY OF STORAGE LEVELS EACH HAVING A PLURALITY OF RECORD STORAGE POSITIONS; MEANS FOR STORING A RECORD IN A SELECTED ONE OF SAID LEVELS; MEANS FOR EMPIRICALLY ORDERING RECORDS IN SAID LEVELS; MEANS FOR DETERMINING, AT ANY GIVEN TIME, IN WHICH RECORD STORAGE POSITION OF WHICH LEVEL A DESIRED RECORD IS STORED; AND MEANS RESPONSIVE TO SAID POSITION DETERMINING MEANS FOR ACCESSING SAID DESIRED RECORD.
Claim 2
Dependent Claim
71 words
A HIERARCHY STORAGE SYSTEM COMPRISING: A PLURALITY OF STORAGE LEVELS EACH HAVING A PLURALITY OF RECORD STORAGE POSITIONS; MEANS FOR STORING A RECORD IN A SELECTED ONE OF SAID LEVELS; MEANS FOR EMPIRICALLY ORDERING RECORDS IN SAID LEVELS; MEANS FOR DETERMINING, AT ANY GIVEN TIME, IN WHICH RECORD STORAGE POSITION OF WHICH LEVEL A DESIRED RECORD IS STORED; AND MEANS RESPONSIVE TO SAID POSITION DETERMINING MEANS FOR ACCESSING SAID DESIRED RECORD.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |