US3217438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Philatelic mounts and method of making same
Assignee: Individual
•
Filing: 1960-10-07
•
Granted: 1965-11-16
•
Expires: 1980-10-07
Abstract
No abstract record available.
Inventors
- 👤 Charles T Hathaway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:35
CPC Classifications
B; B42; B42F; B42F5/00; B42F5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
MULTI-LEAF STAMP MOUNTING SHEETS COMPRISING A SHEET OF FIBROUS MATERIAL, ADHESIVE ON THE UNDERSURFACE OF THE FIBROUS SHEET MATERIAL FOR AFFIXING SAID SHEETS TO ALBUM PAGES, AT LEAST TWO TRANSPARENT SHEETS OF SYNTHETIC PLASTIC MATERIAL SUPERIMPOSED ON THE ADHESIVE-FREE SURFACE OF SAID FIBROUS SHEET, THE EDGE PORTIONS OF BOTH SAID TRANSPARENT SHEETS BEING BONDED TO THE EDGE PORTIONS OF SAID FIBROUS SHEET.
Claim 2
Dependent Claim
62 words
MULTI-LEAF STAMP MOUNTING SHEETS COMPRISING A SHEET OF FIBROUS MATERIAL, ADHESIVE ON THE UNDERSURFACE OF THE FIBROUS SHEET MATERIAL FOR AFFIXING SAID SHEETS TO ALBUM PAGES, AT LEAST TWO TRANSPARENT SHEETS OF SYNTHETIC PLASTIC MATERIAL SUPERIMPOSED ON THE ADHESIVE-FREE SURFACE OF SAID FIBROUS SHEET, THE EDGE PORTIONS OF BOTH SAID TRANSPARENT SHEETS BEING BONDED TO THE EDGE PORTIONS OF SAID FIBROUS SHEET.
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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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |