US3058868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming lap seams
Assignee: Primerica Inc
•
Filing: 1960-12-23
•
Granted: 1962-10-16
•
Expires: 1980-12-23
Abstract
No abstract record available.
Inventors
- 👤 Schroeder George Oscar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:40
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/02; B29C66/022; B29C66/0224; B29C66/02245; B29C66/13; B29C66/135; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/70; B29C66/72; B29C66/723; B29C66/7234; B29C66/72343; B29C66/80; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83413; B31; B31F; B31F1/00; B31F1/0003; B31F1/0006; B31F1/0009; B31F1/0016; B31F7/00; B31F7/006; B29C2793/00; B29C2793/0081; B29C66/7232; B29C66/72321; B29C66/72327; B29C66/72328; B29L; B29L2009/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1008; Y10T156/1011; Y10T156/1026; Y10T156/1034; Y10T156/1052; Y10T156/1059; Y10T156/1062; Y10T156/1066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A METHOD OF FORMING A LAP SEAM BY JOINING TWO OVERLAPPING MARGINS OF A FIBER SHEET MATERIAL HAVING A LIQUID IMPERVIOUS LAYER ON AT LEAST ONE SURFACE THEREOF COMPRISING THE STEPS OF PROVIDING ONE OF SAID MARGINS WITH A THINNED STRIP ADJACENT THE EDGE THEREOF AND TAPERED TOWARDS SAID EDGE, SAID THINNED STRIP BEING FORMED BY REMOVAL OF A PORTION OF SAID FIBER MATERIAL ON THE SURFACE REMOTE FROM SAID LIQUID IMPERVIOUS LAYER WHILE LEAVING SAID LIQUID IMPERVIOUS LAYER SUBSTANTIALLY INTACT, FOLDING A PORTION OF SAID THINNED STRIP BACK UPON THE REMAINING PORTION WITH SAID LIQUID IMPERVIOUS LAYER DISPOSED OUTWARDLY OF THE FOLD, PRESSING SAID FOLDED PORTION INTO CLOSE CONTACT WITH SAID REMAINING PORTION, THE FOLDED ANDO CLOSE PRESSED PORTION OF SAID MARGIN HAVING A THICKNESS NOT
Claim 2
Independent Claim
127 words
A METHOD OF FORMING A LAP SEAM BY JOINING TWO OVERLAPPING MARGINS OF A FIBER SHEET MATERIAL HAVING A LIQUID IMPERVIOUS LAYER ON AT LEAST ONE SURFACE THEREOF COMPRISING THE STEPS OF PROVIDING ONE OF SAID MARGINS WITH A THINNED STRIP ADJACENT THE EDGE THEREOF AND TAPERED TOWARDS SAID EDGE, SAID THINNED STRIP BEING FORMED BY REMOVAL OF A PORTION OF SAID FIBER MATERIAL ON THE SURFACE REMOTE FROM SAID LIQUID IMPERVIOUS LAYER WHILE LEAVING SAID LIQUID IMPERVIOUS LAYER SUBSTANTIALLY INTACT, FOLDING A PORTION OF SAID THINNED STRIP BACK UPON THE REMAINING PORTION WITH SAID LIQUID IMPERVIOUS LAYER DISPOSED OUTWARDLY OF THE FOLD, PRESSING SAID FOLDED PORTION INTO CLOSE CONTACT WITH SAID REMAINING PORTION, THE FOLDED ANDO CLOSE PRESSED PORTION OF SAID MARGIN HAVING A THICKNESS NOT
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) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |