US3356023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making stencil marking apparatus
Assignee: Individual
•
Filing: 1965-06-22
•
Granted: 1967-12-05
•
Expires: 1985-06-22
Abstract
No abstract record available.
Inventors
- 👤 Elmer H Schuttenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:24
CPC Classifications
B; B05; B05C; B05C17/00; B05C17/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A METHOD OF MAKING A STENCIL WHICH INCLUDES PREPARING ON PAPER OR THE LIKE A MASTER COPY OF THE DESIGN TO BE PRODUCED AND REPRESENTATIONS OF A PLURALITY OF SPACED INDEXING HOLES, PHOTOGRAPHICALLY TRANSFERRING SAID DESIGN AND REPRESENTATIONS OF INDEXING HOLES IN THE DESIRED SIZE TO A STENCIL BLANK OF PERVIOUS BACKING MATERIAL HAVING A PHOTO SENSITIVE IMPERVIOUS COATING THEREON, DEVELOPING SAID BLAND WHEREBY SAID IMPERVIOUS COATING IS REMOVED FROM SAID PERVIOUS BACKING SHEET AT SAID DESIGN AND SAID REPRESENTATIONS OF INDEXING HOLES, AND APPLYING A SOLVENT FOR THE PERVIOUS BACKING MATERIAL BUT NOT FOR SAID IMPERVIOUS COATING THEREON TO THE PORTION OF SAID BLANK IN WHICH SAID REPRESENTATIONS OF INDEXING HOLES ARE LOCATED WITHOUT PERMITTING SAID SOLVENT TO CONTACT THE DESIGN CARRYING PORTION OF SAID BLANK WHEREBY THE PERVIOUS BACKING AT SAID REPRESENTATIONS OF INDEXING HOLES IS DISSOLVED AWAY TO FORM OPEN INDEXING HOLES THROUGH SAID BLANK AND LOCATED IN THE SAME RELATION TO THE DESIGN AS ARE SAID REPRESENTATIONS OF SAID HOLES ON SAID MASTER COPY.
Claim 2
Independent Claim
168 words
A METHOD OF MAKING A STENCIL WHICH INCLUDES PREPARING ON PAPER OR THE LIKE A MASTER COPY OF THE DESIGN TO BE PRODUCED AND REPRESENTATIONS OF A PLURALITY OF SPACED INDEXING HOLES, PHOTOGRAPHICALLY TRANSFERRING SAID DESIGN AND REPRESENTATIONS OF INDEXING HOLES IN THE DESIRED SIZE TO A STENCIL BLANK OF PERVIOUS BACKING MATERIAL HAVING A PHOTO SENSITIVE IMPERVIOUS COATING THEREON, DEVELOPING SAID BLAND WHEREBY SAID IMPERVIOUS COATING IS REMOVED FROM SAID PERVIOUS BACKING SHEET AT SAID DESIGN AND SAID REPRESENTATIONS OF INDEXING HOLES, AND APPLYING A SOLVENT FOR THE PERVIOUS BACKING MATERIAL BUT NOT FOR SAID IMPERVIOUS COATING THEREON TO THE PORTION OF SAID BLANK IN WHICH SAID REPRESENTATIONS OF INDEXING HOLES ARE LOCATED WITHOUT PERMITTING SAID SOLVENT TO CONTACT THE DESIGN CARRYING PORTION OF SAID BLANK WHEREBY THE PERVIOUS BACKING AT SAID REPRESENTATIONS OF INDEXING HOLES IS DISSOLVED AWAY TO FORM OPEN INDEXING HOLES THROUGH SAID BLANK AND LOCATED IN THE SAME RELATION TO THE DESIGN AS ARE SAID REPRESENTATIONS OF SAID HOLES ON SAID MASTER COPY.
References Cited (Backward Citations)
US1358572A
Cited
US1675561A
Cited
US1707095A
Cited
US2190499A
Cited
US2444860A
Cited
US2614491A
Cited
US2969731A
Cited
US2818803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |