Patent US2581561A successfully refreshed from Google Patents.
US2581561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filament package and method of producing same
Assignee: Individual
•
Filing: 1947-06-24
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Granted: 1952-01-08
•
Expires: 1967-06-24
Abstract
No abstract record available.
Inventors
- 👤 Shaw Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:31
CPC Classifications
B; B65; B65D; B65D71/00; B65D71/06; B65D71/063; B65D85/00; B65D85/07; B65D85/08; Y; Y10; Y10S; Y10S128/00; Y10S128/18; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49865
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
86 words
A METHOD OF PACKAGING A LARGE NUMBER OF FILAMENTS OR THE LIKE OF EQUAL LENGTHS WHICH COMPRISES MOISTENING A SEAMLESS TUBING OF REGENERATED CELLULOSE SUFFICIENTLY TO SUBSTANTIALLY EXPAND SAID TUBING, INTRODUCING A BUNDLE OF PARALLELLY DISPOSED FILAMENTS INTO SAID TUBING WHILE EXPANDED TO SUBSTANTIALLY FILL SAID TUBING AND THEN SUBJECTING SAID ENCLOSED FILAMENTS TO A DRYING ATMOSPHERE WHEREBY SAID CELLULOSE MATERIAL UPON SHRINKING TIGHTLY ENCLOSES SAID FILAMENTS SUBJECTING THEM TO CONSTRICTING TENSION, HOLDING THEM FIRMLY IN FIXED PARALLEL RELATION TO EACH OTHER IN A CYLINDRICAL PACKAGE.
Claim 2
Independent Claim
86 words
A METHOD OF PACKAGING A LARGE NUMBER OF FILAMENTS OR THE LIKE OF EQUAL LENGTHS WHICH COMPRISES MOISTENING A SEAMLESS TUBING OF REGENERATED CELLULOSE SUFFICIENTLY TO SUBSTANTIALLY EXPAND SAID TUBING, INTRODUCING A BUNDLE OF PARALLELLY DISPOSED FILAMENTS INTO SAID TUBING WHILE EXPANDED TO SUBSTANTIALLY FILL SAID TUBING AND THEN SUBJECTING SAID ENCLOSED FILAMENTS TO A DRYING ATMOSPHERE WHEREBY SAID CELLULOSE MATERIAL UPON SHRINKING TIGHTLY ENCLOSES SAID FILAMENTS SUBJECTING THEM TO CONSTRICTING TENSION, HOLDING THEM FIRMLY IN FIXED PARALLEL RELATION TO EACH OTHER IN A CYLINDRICAL PACKAGE.
Claim 3
Dependent Claim
56 words
A PACKAGE COMPRISING A LARGE NUMBER OF PARALLELLY DISPOSED FILAMENTS OF SUBSTANTIALLY EQUAL LENGTHS CLOSELY PACKED IN A CYLINDRICAL SHAPE AND A SEAMLESS TUBE OF THIN FLEXIBLE PLASTIC FILM SURROUNDING SAID FILAMENTS AND EXTENDING OVER SUBSTANTIALLY THE ENTIRE LENGTH OF THE FILAMENTS, SAID TUBE BEING SHRUNKEN AROUND THE PACKED FILAMENTS AND HOLDING THEM WITH CONSTRICTING TENSION.
Claim 4
Dependent Claim
56 words
A PACKAGE COMPRISING A LARGE NUMBER OF PARALLELLY DISPOSED FILAMENTS OF SUBSTANTIALLY EQUAL LENGTHS CLOSELY PACKED IN A CYLINDRICAL SHAPE AND A SEAMLESS TUBE OF THIN FLEXIBLE PLASTIC FILM SURROUNDING SAID FILAMENTS AND EXTENDING OVER SUBSTANTIALLY THE ENTIRE LENGTH OF THE FILAMENTS, SAID TUBE BEING SHRUNKEN AROUND THE PACKED FILAMENTS AND HOLDING THEM WITH CONSTRICTING TENSION.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |